Optical image capturing system

ABSTRACT

The invention discloses a four-piece optical lens for capturing image and a four-piece optical module for capturing image. In order from an object side to an image side, the optical lens along the optical axis comprises a first lens with positive refractive power; a second lens with refractive power; a third lens with refractive power; and a fourth lens with refractive power; and wherein at least one of the image-side surface and object-side surface of each of the four lens elements is aspheric whereby the optical lens can increase aperture value and improve the imagining quality for use in compact cameras.

BACKGROUND OF THE INVENTION

1. Technical Field

The present invention relates generally to an optical system, and moreparticularly to a compact optical image capturing system for anelectronic device.

2. Description of Related Art

In recent years, with the rise of portable electronic devices havingcamera functionalities, the demand for an optical image capturing systemis raised gradually. The image sensing device of ordinary photographingcamera is commonly selected from charge coupled device (CCD) orcomplementary metal-oxide semiconductor sensor (CMOS Sensor). Inaddition, as advanced semiconductor manufacturing technology enables theminimization of pixel size of the image sensing device, the developmentof the optical image capturing system towards the field of high pixels.Therefore, the requirement for high imaging quality is rapidly raised.

The conventional optical system of the portable electronic deviceusually has a two or three-piece lens. However, the optical system isasked to take pictures in a dark environment, in other words, theoptical system is asked to have a large aperture. An optical system withlarge aperture usually has several problems, such as large aberration,poor image quality at periphery of the image, and hard to manufacture.In addition, an optical system of wide-angle usually has largedistortion. Therefore, the conventional optical system provides highoptical performance as required.

It is an important issue to increase the quantity of light entering thelens and the angle of field of the lens. In addition, the modern lens isalso asked to have several characters, including high pixels, high imagequality, small in size, and high optical performance.

SUMMARY OF THE INVENTION

The aspect of embodiment of the present disclosure directs to an opticalimage capturing system and an optical image capturing lens which usecombination of refractive powers, convex and concave surfaces offour-piece optical lenses (the convex or concave surface in thedisclosure denotes the geometrical shape of an image-side surface or anobject-side surface of each lens on an optical axis) to increase thequantity of incoming light of the optical image capturing system, and toimprove imaging quality for image formation, so as to be applied tominimized electronic products.

The term and its definition to the lens parameter in the embodiment ofthe present are shown as below for further reference.

The lens parameter related to a length or a height in the lens element:

A height for image formation of the optical image capturing system isdenoted by HOI. A height of the optical image capturing system isdenoted by HOS. A distance from the object-side surface of the firstlens element to the image-side surface of the fourth lens element isdenoted by InTL. A distance from the image-side surface of the fourthlens to the image plane is denoted by InB. InTL+InB=HOS. A distance fromthe first lens element to the second lens element is denoted by IN12(instance). A central thickness of the first lens element of the opticalimage capturing system on the optical axis is denoted by TP1 (instance).

The lens parameter related to a material in the lens:

An Abbe number of the first lens element in the optical image capturingsystem is denoted by NA1 (instance). A refractive index of the firstlens element is denoted by Nd1 (instance).

The lens parameter related to a view angle in the lens:

A view angle is denoted by AF. Half of the view angle is denoted by HAF.A major light angle is denoted by MRA.

The lens parameter related to exit/entrance pupil in the lens

An entrance pupil diameter of the optical image capturing system isdenoted by HEP.

The lens parameter related to a depth of the lens shape

A distance in parallel with an optical axis from a maximum effectivesemi diameter position to an axial point on the object-side surface ofthe fourth lens is denoted by InRS41 (instance). A distance in parallelwith an optical axis from a maximum effective semi diameter position toan axial point on the image-side surface of the fourth lens is denotedby InRS42 (instance).

The lens parameter related to the lens shape:

A critical point C is a tangent point on a surface of a specific lens,and the tangent point is tangent to a plane perpendicular to the opticalaxis and the tangent point cannot be a crossover point on the opticalaxis. To follow the past, a distance perpendicular to the optical axisbetween a critical point C31 on the object-side surface of the thirdlens and the optical axis is HVT31 (instance). A distance perpendicularto the optical axis between a critical point C32 on the image-sidesurface of the third lens and the optical axis is HVT32 (instance). Adistance perpendicular to the optical axis between a critical point C41on the object-side surface of the fourth lens and the optical axis isHVT41 (instance). A distance perpendicular to the optical axis between acritical point C42 on the image-side surface of the fourth lens and theoptical axis is HVT42 (instance). The object-side surface of the fourthlens has one inflection point IF411 which is nearest to the opticalaxis, and the sinkage value of the inflection point IF411 is denoted bySGI411. A distance perpendicular to the optical axis between theinflection point IF411 and the optical axis is HIF411 (instance). Theimage-side surface of the fourth lens has one inflection point IF421which is nearest to the optical axis, and the sinkage value of theinflection point IF421 is denoted by SGI421 (instance). A distanceperpendicular to the optical axis between the inflection point IF421 andthe optical axis is HIF421 (instance). The object-side surface of thefourth lens has one inflection point IF412 which is the second nearestto the optical axis, and the sinkage value of the inflection point IF412is denoted by SGI412 (instance). A distance perpendicular to the opticalaxis between the inflection point IF412 and the optical axis is HIF412(instance). The image-side surface of the fourth lens has one inflectionpoint IF422 which is the second nearest to the optical axis, and thesinkage value of the inflection point IF422 is denoted by SGI422(instance). A distance perpendicular to the optical axis between theinflection point IF422 and the optical axis is HIF422 (instance).

The lens element parameter related to an aberration:

Optical distortion for image formation in the optical image capturingsystem is denoted by ODT. TV distortion for image formation in theoptical image capturing system is denoted by TDT. Further, the range ofthe aberration offset for the view of image formation may be limited to50%-100% field. An offset of the spherical aberration is denoted by DFS.An offset of the coma aberration is denoted by DFC.

The present invention provides an optical image capturing system, inwhich the fourth lens is provided with an inflection point at theobject-side surface or at the image-side surface to adjust the incidentangle of each view field and modify the ODT and the TDT. In addition,the surfaces of the fourth lens are capable of modifying the opticalpath to improve the imagining quality.

The optical image capturing system of the present invention includes afirst lens, a second lens, a third lens, and a fourth lens in orderalong an optical axis from an object side to an image side. The firstlens has positive refractive power, and the fourth lens has refractivepower. Both the object-side surface and the image-side surface of thefourth lens are aspheric surfaces. The optical image capturing systemsatisfies:1.2≦f/HEP≦3.5; 0.5≦HOS/f≦3.0; 0<Σ|InRS|/InTL≦3;

where f is a focal length of the optical image capturing system; HEP isan entrance pupil diameter of the optical image capturing system; HOS isa distance in parallel with the optical axis between an object-sidesurface, which face the object side, of the first lens and the imageplane; InTL is a distance between the object-side surface of the firstlens and the image-side surface of the third lens; and Σ|InRS| is of ansum of absolute values of the displacements in parallel with the opticalaxis of each lens with refractive power from the central point to thepoint at the maximum effective semi diameter, i.e. Σ|InRS|=InRSO+InRSIwhile InRSO is of a sum of absolute values of the displacements inparallel with the optical axis of each lens with refractive power fromthe central point on the object-side surface to the point at the maximumeffective semi diameter of the object-side surface and InRSI is of a sumof absolute values of the displacements in parallel with the opticalaxis of each lens with refractive power from the central point on theimage-side surface to the point at the maximum effective semi diameterof the image-side surface.

The present invention further provides an optical image capturingsystem, including a first lens, a second lens, a third lens, and afourth lens in order along an optical axis from an object side to animage side. The first lens has positive refractive power, and both theobject-side surface and the image-side surface thereof are asphericsurfaces. The second lens has refractive power, and the third lens haverefractive power. The fourth lens has refractive power, and both anobject-side surface and an image-side surface thereof are asphericsurfaces. The optical image capturing system satisfies:1.2≦f/HEP≦3.5; 0.5≦HOS/f≦3.0; 0<Σ|InRS|/InTL≦3;|TDT|<60%; and |ODT|≦50%;

where f is a focal length of the optical image capturing system; HEP isan entrance pupil diameter of the optical image capturing system; HOS isa distance in parallel with the optical axis between an object-sidesurface, which face the object side, of the first lens and the imageplane; HAF is a half of the view angle of the optical image capturingsystem; TDT is a TV distortion; ODT is an optical distortion; InTL is adistance between the object-side surface of the first lens and theimage-side surface of the third lens; and Σ|InRS| is of an sum ofabsolute values of the displacements in parallel with the optical axisof each lens with refractive power from the central point to the pointat the maximum effective semi diameter, i.e. Σ|InRS|=InRSO+InRSI whileInRSO is of a sum of absolute values of the displacements in parallelwith the optical axis of each lens with refractive power from thecentral point on the object-side surface to the point at the maximumeffective semi diameter of the object-side surface and InRSI is of a sumof absolute values of the displacements in parallel with the opticalaxis of each lens with refractive power from the central point on theimage-side surface to the point at the maximum effective semi diameterof the image-side surface.

The present invention further provides an optical image capturingsystem, including a first lens, a second lens, a third lens, and afourth lens in order along an optical axis from an object side to animage side. The first lens has positive refractive power, and both anobject-side surface and an image-side surface thereof are asphericsurfaces. The second lens has negative refractive power. The third lenshas refractive power. The fourth lens has refractive power, and at leastone inflection point on at least one surface thereof, wherein both anobject-side surface and an image-side surface thereof are asphericsurfaces. The optical image capturing system satisfies:1.2≦f/HEP≦3.5; 0.4≦|tan(HAF)|≦3.0; 0.5≦HOS/f≦3.0; |TDT|<1.5%;|ODT|≦2.5%;and 0<Σ|InRS|/InTL≦3;

where f is a focal length of the optical image capturing system; HEP isan entrance pupil diameter of the optical image capturing system; HOS isa distance in parallel with the optical axis between an object-sidesurface, which face the object side, of the first lens and the imageplane; HAF is a half of the view angle of the optical image capturingsystem; TDT is a TV distortion; ODT is an optical distortion; InTL is adistance between the object-side surface of the first lens and theimage-side surface of the third lens; and Σ|InRS| is of an sum ofabsolute values of the displacements in parallel with the optical axisof each lens with refractive power from the central point to the pointat the maximum effective semi diameter, i.e. Σ|InRS|=InRSO+InRSI whileInRSO is of a sum of absolute values of the displacements in parallelwith the optical axis of each lens with refractive power from thecentral point on the object-side surface to the point at the maximumeffective semi diameter of the object-side surface and InRSI is of a sumof absolute values of the displacements in parallel with the opticalaxis of each lens with refractive power from the central point on theimage-side surface to the point at the maximum effective semi diameterof the image-side surface.

In an embodiment, the optical image capturing system further includes animage sensor with a size less than 1/1.2″ in diagonal, a preferred sizeis 1/2.3″, and a pixel less than 1.4 μm. A preferable pixel size of theimage sensor is less than 1.12 μm, and more preferable pixel size isless than 0.9 μm. A 16:9 image sensor is available for the optical imagecapturing system of the present invention.

In an embodiment, the optical image capturing system of the presentinvention is available to high-quality (4K2K, so called UHD and QHD)recording, and provides high quality of image.

In an embodiment, a height of the optical image capturing system (HOS)can be reduced while |f1|>f4.

In an embodiment, when the lenses satisfy |f2|+|f3|>|f1|+|f4|, at leastone of the lenses from the second lens to the third lens could have weakpositive refractive power or weak negative refractive power. The weakrefractive power indicates that an absolute value of the focal length isgreater than 10. When at least one of the lenses from the second lens tothe third lens could have weak positive refractive power, it may sharethe positive refractive power of the first lens, and on the contrary,when at least one of the lenses from the second lens to the third lenscould have weak negative refractive power, it may finely modify theaberration of the system.

In an embodiment, the fourth lens can have negative refractive power,and an image-side surface thereof is concave, it may reduce back focallength and size. Besides, the fourth lens has at least an inflectionpoint on at least a surface thereof, which may reduce an incident angleof the light of an off-axis field of view and modify the aberration ofthe off-axis field of view.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

The present invention will be best understood by referring to thefollowing detailed description of some illustrative embodiments inconjunction with the accompanying drawings, in which

FIG. 1A is a schematic diagram of a first preferred embodiment of thepresent invention;

FIG. 1B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the first embodiment of thepresent application;

FIG. 1C shows a curve diagram of TV distortion of the optical imagecapturing system of the first embodiment of the present application;

FIG. 2A is a schematic diagram of a second preferred embodiment of thepresent invention;

FIG. 2B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the second embodiment of thepresent application;

FIG. 2C shows a curve diagram of TV distortion of the optical imagecapturing system of the second embodiment of the present application;

FIG. 3A is a schematic diagram of a third preferred embodiment of thepresent invention;

FIG. 3B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the third embodiment of thepresent application;

FIG. 3C shows a curve diagram of TV distortion of the optical imagecapturing system of the third embodiment of the present application;

FIG. 4A is a schematic diagram of a fourth preferred embodiment of thepresent invention;

FIG. 4B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the fourth embodiment of thepresent application;

FIG. 4C shows a curve diagram of TV distortion of the optical imagecapturing system of the fourth embodiment of the present application;

FIG. 5A is a schematic diagram of a fifth preferred embodiment of thepresent invention;

FIG. 5B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the fifth embodiment of thepresent application;

FIG. 5C shows a curve diagram of TV distortion of the optical imagecapturing system of the fifth embodiment of the present application;

FIG. 6A is a schematic diagram of a sixth preferred embodiment of thepresent invention;

FIG. 6B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the sixth embodiment of thepresent application;

FIG. 6C shows a curve diagram of TV distortion of the optical imagecapturing system of the sixth embodiment of the present application;

FIG. 7A is a schematic diagram of a seventh preferred embodiment of thepresent invention;

FIG. 7B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the seventh embodiment of thepresent application;

FIG. 7C shows a curve diagram of TV distortion of the optical imagecapturing system of the seventh embodiment of the present application;

FIG. 8A is a schematic diagram of a eighth preferred embodiment of thepresent invention;

FIG. 8B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the eighth embodiment of thepresent application; and

FIG. 8C shows a curve diagram of TV distortion of the optical imagecapturing system of the eighth embodiment of the present application.

DETAILED DESCRIPTION OF THE INVENTION

An optical image capturing system of the present invention includes afirst lens, a second lens, a third lens, and a forth lens from an objectside to an image side. The optical image capturing system further isprovided with an image sensor at an image plane.

The optical image capturing system works in three wavelengths, including486.1 nm, 587.5 nm, and 656.2 nm, wherein 587.5 nm is the main referencewavelength, and 555 nm is adopted as the main reference wavelength forextracting features.

The optical image capturing system of the present invention satisfies0.5≦ΣPPR/|ΣNPR|≦4.5, and a preferable range is 1≦ΣPPR/|ΣNPR|≦3.5, wherePPR is a ratio of the focal length f of the optical image capturingsystem to a focal length fp of each of lenses with positive refractivepower; NPR is a ratio of the focal length f of the optical imagecapturing system to a focal length fn of each of lenses with negativerefractive power; and ΣNPR is a sum of the NPRs of each negative lens.It is helpful to control of an entire refractive power and an entirelength of the optical image capturing system.

HOS is a height of the optical image capturing system, and when theratio of HOS/f approaches to 1, it is helpful for decrease of size andincrease of imaging quality.

In an embodiment, the optical image capturing system of the presentinvention satisfies 0<ΣPP≦200 and f1/ΣPP≦0.85, and a preferable range is0<ΣPP≦150 and 0.01≦f1/ΣPP≦0.6, where ΣPP is a sum of a focal length fpof each lens with positive refractive power, and ΣNP is a sum of a focallength fn of each lens with negative refractive power. It is helpful tocontrol of focusing capacity of the system and redistribution of thepositive refractive powers of the system to avoid the significantaberration in early time.

The first lens can have positive refractive power, and an object-sidesurface, which faces the object side, thereof is convex. It may modifythe positive refractive power of the first lens as well as shorten theentire length of the system.

The second lens has negative refractive power, which may correct theaberration of the first lens.

The third lens has positive refractive power, which may share thepositive refractive power of the first lens.

The fourth lens has negative refractive power, and an image-side surfacethereof, which faces the image side, is concave. It may shorten a rearfocal length to reduce the size of the system. In addition, the fourthlens is provided with at least an inflection point on at least a surfaceto reduce an incident angle of the light of an off-axis field of viewand modify the aberration of the off-axis field of view. It ispreferable that each surface, the object-side surface and the image-sidesurface, of the fourth lens has at least an inflection point.

The image sensor is provided on the image plane. The optical imagecapturing system of the present invention satisfies HOS/HOI≦3 and0.5≦HOS/f≦3.0, and a preferable range is 1≦HOS/HOI≦2.5 and 1≦HOS/f≦2,where HOI is height for image formation of the optical image capturingsystem, i.e., the maximum image height, and HOS is a height of theoptical image capturing system, i.e. a distance on the optical axisbetween the object-side surface of the first lens and the image plane.It is helpful for reduction of size of the system for used in compactcameras.

The optical image capturing system of the present invention further isprovided with an aperture to increase image quality.

In the optical image capturing system of the present invention, theaperture could be a front aperture or a middle aperture, wherein thefront aperture is provided between the object and the first lens, andthe middle is provided between the first lens and the image plane. Thefront aperture provides a long distance between an exit pupil of thesystem and the image plane, which allows more elements to be installed.The middle could enlarge a view angle of view of the system and increasethe efficiency of the image sensor. The optical image capturing systemsatisfies 0.5≦InS/HOS≦1.1, and a preferable range is 0.8≦InS/HOS≦1,where InS is a distance between the aperture and the image plane. It ishelpful for size reduction and wide angle.

The optical image capturing system of the present invention satisfies0.45≦ΣTP/InTL<0.95, where InTL is a distance between the object-sidesurface of the first lens and the image-side surface of the fourth lens,and ETP is a sum of central thicknesses of the lenses on the opticalaxis. It is helpful for the contrast of image and yield rate ofmanufacture, and provides a suitable back focal length for installationof other elements.

The optical image capturing system of the present invention satisfies0.1≦|R1/R2|≦0.5, and a preferable range is 0.1≦|R1/R2|≦0.45, where R1 isa radius of curvature of the object-side surface of the first lens, andR2 is a radius of curvature of the image-side surface of the first lens.It provides the first lens with a suitable refractive power to reducethe increase rate of the spherical aberration.

The optical image capturing system of the present invention satisfies−200<(R7−R8)/(R7+R8)<30, where R7 is a radius of curvature of theobject-side surface of the fourth lens, and R8 is a radius of curvatureof the image-side surface of the fourth lens. It may modify theastigmatic field curvature.

The optical image capturing system of the present invention satisfies0<IN12/f≦0.25, and a preferable range is 0.01≦IN12/f≦0.20, where IN12 isa distance on the optical axis between the first lens and the secondlens. It may correct chromatic aberration and improve the performance.

The optical image capturing system of the present invention satisfies1≦(TP1+IN12)/TP2≦10, where TP1 is a central thickness of the first lenson the optical axis, and TP2 is a central thickness of the second lenson the optical axis. It may control the sensitivity of manufacture ofthe system and improve the performance.

The optical image capturing system of the present invention satisfies0.2≦(TP4+IN34)/TP4≦3, where TP3 is a central thickness of the third lenson the optical axis, TP4 is a central thickness of the fourth lens onthe optical axis, and IN34 is a distance between the third lens and thefourth lens. It may control the sensitivity of manufacture of the systemand improve the performance.

The optical image capturing system of the present invention satisfies0.1≦(TP2+TP3)/ΣTP≦0.9, and a preferable range is 0.4≦(TP2+TP3)/ΣTP≦0.8.It may finely modify the aberration of the incident rays and reduce theheight of the system.

The optical image capturing system of the present invention satisfies 0mm<|InRS11|+|InRS12|≦2 mm and 1.0≦(|InRS11|+TP1+|InRS12|)/TP1≦3, whereInRS11 is a displacement in parallel with the optical axis from a pointon the object-side surface of the first lens, through which the opticalaxis passes, to a point at the maximum effective semi diameter of theobject-side surface of the first lens, wherein InRS11 is positive whilethe displacement is toward the image side, and InRS11 is negative whilethe displacement is toward the object side; InRS12 is a displacement inparallel with the optical axis from a point on the image-side surface ofthe first lens, through which the optical axis passes, to a point at themaximum effective semi diameter of the image-side surface of the firstlens; and TP1 is a central thickness of the first lens on the opticalaxis. It may control a ratio of the central thickness of the first lensand the effective semi diameter thickness (thickness ratio) to increasethe yield rate of manufacture.

The optical image capturing system of the present invention satisfies 0mm<|InRS21|+|InRS22|≦2 mm; and 1.0≦(|InRS21|+TP2+|InRS22|)/TP2≦5, whereInRS21 is a displacement in parallel with the optical axis from a pointon the object-side surface of the second lens, through which the opticalaxis passes, to a point at the maximum effective semi diameter of theobject-side surface of the first lens; InRS22 is a displacement inparallel with the optical axis from a point on the image-side surface ofthe second lens, through which the optical axis passes, to a point atthe maximum effective semi diameter of the image-side surface of thesecond lens; and TP2 is a central thickness of the second lens on theoptical axis. It may control a ratio of the central thickness of thesecond lens and the effective semi diameter thickness (thickness ratio)to increase the yield rate of manufacture.

The optical image capturing system of the present invention satisfies 0mm<|InRS31|+|InRS32|≦2 mm; and 1.0≦(|InRS31|+TP3+|InRS32|)/TP3≦10, whereInRS31 is a displacement in parallel with the optical axis from a pointon the object-side surface of the third lens, through which the opticalaxis passes, to a point at the maximum effective semi diameter of theobject-side surface of the first lens; InRS32 is a displacement inparallel with the optical axis from a point on the image-side surface ofthe third lens, through which the optical axis passes, to a point at themaximum effective semi diameter of the image-side surface of the thirdlens; and TP3 is a central thickness of the third lens on the opticalaxis. It may control a ratio of the central thickness of the third lensand the effective semi diameter thickness (thickness ratio) to increasethe yield rate of manufacture.

The optical image capturing system of the present invention satisfies 0mm<|InRS41|+|InRS42|≦5 mm; and 1.0<(|InRS41|+TP4+|InRS42|)/TP4≦10, whereInRS41 is a displacement in parallel with the optical axis from a pointon the object-side surface of the fourth lens, through which the opticalaxis passes, to a point at the maximum effective semi diameter of theobject-side surface of the first lens; InRS42 is a displacement inparallel with the optical axis from a point on the image-side surface ofthe fourth lens, through which the optical axis passes, to a point atthe maximum effective semi diameter of the image-side surface of thefourth lens; and TP4 is a central thickness of the fourth lens on theoptical axis. It may control a ratio of the central thickness of thefourth lens and the effective semi diameter thickness (thickness ratio)to increase the yield rate of manufacture.

The optical image capturing system of the present invention satisfies0<Σ|InRS|≦15 mm, where Σ|InRS| is of an sum of absolute values of thedisplacements in parallel with the optical axis of each lens withrefractive power from the central point to the point at the maximumeffective semi diameter, i.e. Σ|InRS|=InRSO+InRSI while InRSO is of asum of absolute values of the displacements in parallel with the opticalaxis of each lens with refractive power from the central point on theobject-side surface to the point at the maximum effective semi diameterof the object-side surface, i.e.InRSO=|InRS11|+|InRS21|+|InRS31|+|InRS41| and InRSI is of a sum ofabsolute values of the displacements in parallel with the optical axisof each lens with refractive power from the central point on theimage-side surface to the point at the maximum effective semi diameterof the image-side surface, i.e.InRSI=|InRS12|+|InRS22|+|InRS32|+|InRS42|. It may increase thecapability of modifying the off-axis view field aberration of thesystem.

The optical image capturing system of the present invention satisfies0<Σ|InRS|/InTL≦3 and 0≦Σ|InRS|/HOS≦2. It may reduce the total height ofthe system as well as efficiently increase the capability of modifyingthe off-axis view field aberration of the system.

The optical image capturing system of the present invention satisfies0<|InRS31|+|InRS32|+|InRS41|+|InRS42|≦8 mm;0<(|InRS31|+|InRS32|+|InRS41|+|InRS42|)/InTL≦3; and0<(|InRS31|+|InRS32|+|InRS41|+|InRS42|)/HOS≦2. It could increase theyield rate of manufacture of the two lenses, which are the first and thesecond closest to the image side, and increase the capability ofmodifying the off-axis view field aberration of the system.

The optical image capturing system of the present invention satisfiesHVT31≧0 mm and HVT32≧0 mm, where HVT31 a distance perpendicular to theoptical axis between the critical point on the object-side surface ofthe third lens and the optical axis; and HVT32 a distance perpendicularto the optical axis between the critical point on the image-side surfaceof the third lens and the optical axis. It may efficiently modify theoff-axis view field aberration of the system.

The optical image capturing system of the present invention satisfiesHVT41≧0 mm and HVT42≧0 mm, where HVT41 a distance perpendicular to theoptical axis between the critical point on the object-side surface ofthe fourth lens and the optical axis; and HVT42 a distance perpendicularto the optical axis between the critical point on the image-side surfaceof the fourth lens and the optical axis. It may efficiently modify theoff-axis view field aberration of the system.

The optical image capturing system of the present invention satisfies0.2≦HVT52/HOI≦0.9, and preferable is 0.3≦HVT52/HOI≦0.8. It is helpfulfor correction of the aberration of the peripheral view field.

The optical image capturing system of the present invention satisfies0≦HVT52/HOS≦0.5, and preferable is 0.2≦HVT52/HOS≦0.45. It is helpful forcorrection of the aberration of the peripheral view field.

In an embodiment, the lenses of high Abbe number and the lenses of lowAbbe number are arranged in an interlaced arrangement that could behelpful for correction of aberration of the system.

An equation of aspheric surface isz=ch ²/[1+[1(k+1)c ² h ²]^(0.5) ]+A4h ⁴ +A6h ⁶ +A8h ⁸ +A10h ¹⁰ +A12h ¹²+A14h ¹⁴ +A16h ¹⁶ +A18h ¹⁸ +A20h ²⁰  (1)

where z is a depression of the aspheric surface; k is conic constant; cis reciprocal of radius of curvature; and A4, A6, A8, A10, A12, A14,A16, A18, and A20 are high-order aspheric coefficients.

In the optical image capturing system, the lenses could be made ofplastic or glass. The plastic lenses may reduce the weight and lower thecost of the system, and the glass lenses may control the thermal effectand enlarge the space for arrangement of refractive power of the system.In addition, the opposite surfaces (object-side surface and image-sidesurface) of the first to the fourth lenses could be aspheric that canobtain more control parameters to reduce aberration. The number ofaspheric glass lenses could be less than the conventional sphericalglass lenses that is helpful for reduction of the height of the system.

When the lens has a convex surface, which means that the surface isconvex around a position, through which the optical axis passes, andwhen the lens has a concave surface, which means that the surface isconcave around a position, through which the optical axis passes.

The optical image capturing system of the present invention further isprovided with a diaphragm to increase image quality.

The optical image capturing system of the present invention could beapplied in dynamic focusing optical system. It is superior in correctionof aberration and high imaging quality so that it could be allied inlots of fields.

We provide several embodiments in conjunction with the accompanyingdrawings for the best understanding, which are:

[First Embodiment]

As shown in FIG. 1A and FIG. 1B, an optical image capturing system 100of the first preferred embodiment of the present invention includes,along an optical axis from an object side to an image side, an aperture100, a first lens 110, a second lens 120, a third lens 130, a fourthlens 140, an infrared rays filter 170, an image plane 180, and an imagesensor 190.

The first lens 110 has positive refractive power, and is made ofplastic. An object-side surface 112 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 114thereof, which faces the image side, is a concave aspheric surface, andthe object-side surface 112 and the image-side surface 114 both have aninflection point respectively. SGI111 is a displacement in parallel withthe optical axis from a point on the object-side surface 112 of thefirst lens 110, through which the optical axis passes, to the inflectionpoint on the object-side surface 112, which is the closest to theoptical axis; SGI121 is a displacement in parallel with the optical axisfrom a point on the image-side surface 114 of the first lens 110,through which the optical axis passes, to the inflection point on theimage-side surface 114, which is the closest to the optical axis.

HIF111 is a displacement perpendicular to the optical axis from a pointon the object-side surface 112 of the first lens 110, through which theoptical axis passes, to the inflection point, which is the closest tothe optical axis; HIF121 is a displacement perpendicular to the opticalaxis from a point on the image-side surface 114 of the first lens 110,through which the optical axis passes, to the inflection point, which isthe closest to the optical axis.

The second lens 120 has negative refractive power, and is made ofplastic. An object-side surface 122 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 124thereof, which faces the image side, is a concave aspheric surface, andthe object-side surface 122 and the image-side surface 124 both have aninflection point respectively. SGI211 is a displacement in parallel withthe optical axis from a point on the object-side surface 122 of thesecond lens 120, through which the optical axis passes, to theinflection point on the object-side surface 122, which is the closest tothe optical axis; SGI221 is a displacement in parallel with the opticalaxis from a point on the image-side surface 124 of the second lens 120,through which the optical axis passes, to the inflection point on theimage-side surface 124, which is the closest to the optical axis.

HIF211 is a displacement perpendicular to the optical axis from a pointon the object-side surface 122 of the second lens 120, through which theoptical axis passes, to the inflection point, which is the closest tothe optical axis; HIF221 is a displacement perpendicular to the opticalaxis from a point on the image-side surface 124 of the second lens 120,through which the optical axis passes, to the inflection point, which isthe closest to the optical axis.

The third lens 130 has positive refractive power, and is made ofplastic. An object-side surface 132, which faces the object side, is aconcave aspheric surface, and an image-side surface 134, which faces theimage side, is a convex aspheric surface, wherein the object-sidesurface 132 has two inflection points, while the image-side surface hasan inflection point. SGI311 is a displacement in parallel with theoptical axis, from a point on the object-side surface 132 of the thirdlens 130, through which the optical axis passes, to the inflection pointon the object-side surface 132, which is the closest to the opticalaxis, and SGI321 is a displacement in parallel with the optical axis,from a point on the image-side surface 134 of the third lens 130,through which the optical axis passes, to the inflection point on theimage-side surface 134, which is the closest to the optical axis.

SGI312 is a displacement in parallel with the optical axis, from a pointon the object-side surface 132 of the third lens 130, through which theoptical axis passes, to the inflection point on the object-side surface132, which is the second closest to the optical axis.

HIF311 is a distance perpendicular to the optical axis between theinflection point on the object-side surface 132 of the third lens 130,which is the closest to the optical axis, and the optical axis, andHIF321 is a distance perpendicular to the optical axis between theinflection point on the image-side surface 134 of the third lens 130,which is the closest to the optical axis, and the optical axis.

HIF312 is a distance perpendicular to the optical axis between theinflection point on the object-side surface 132 of the third lens 130,which is the second the closest to the optical axis, and the opticalaxis.

The fourth lens 140 has negative refractive power, and is made ofplastic. An object-side surface 142 thereof which faces the object sideis a convex aspheric surface, while an image-side surface 144 thereofwhich faces the image side is a concave aspheric surface, and theobject-side surface 142 has two inflection points, while the image-sidesurface 144 has an inflection point. SGI411 is a displacement inparallel with the optical axis from a point on the object-side surface142 of the fourth lens 140, through which the optical axis passes, tothe inflection point on the object-side surface 142, which is theclosest to the optical axis; SGI421 is a displacement in parallel withthe optical axis from a point on the image-side surface 144 of thefourth lens 140, through which the optical axis passes, to theinflection point on the image-side surface 144, which is the closest tothe optical axis.

SGI412 is a displacement in parallel with the optical axis, from a pointon the object-side surface 142 of the fourth lens 140, through which theoptical axis passes, to the inflection point on the object-side surface142, which is the second closest to the optical axis.

HIF411 is a distance perpendicular to the optical axis between theinflection point on the object-side surface 142 of the fourth lens 140,which is the closest to the optical axis, and the optical axis; HIF421is a distance perpendicular to the optical axis between the inflectionpoint on the image-side surface 142 of the fourth lens 140, which is theclosest to the optical axis, and the optical axis.

HIF412 is a distance perpendicular to the optical axis between theinflection point on the object-side surface 142 of the fourth lens 140,which is the second the closest to the optical axis, and the opticalaxis.

The infrared rays filter 170 is made of glass, and between the fourthlens 140 and the image plane 180. The infrared rays filter 170 gives nocontribution to the focal length of the system.

The optical image capturing system of the first preferred embodiment hasthe following parameters, which are f=1.32952 mm; f/HEP=1.83; andHAF=37.5 degrees and tan(HAF)=0.7673, where f is a focal length of thesystem; HAF is a half of the maximum field angle; and HEP is an entrancepupil diameter.

The parameters of the lenses of the first preferred embodiment aref1=1.6074 mm; |f/f1|=0.8271; f4=−1.0098 mm; |f1|>f4; and |f1/f4|=1.5918,where f1 is a focal length of the first lens 110; and f4 is a focallength of the fourth lens 140.

The first preferred embodiment further satisfies |f2|+|f3|=4.0717 mm;|f1|+|f4|=2.6172 mm; and |f2|+|f3|>|f1|+|f4|, where f2 is a focal lengthof the second lens 120; f3 is a focal length of the third lens 130; andf4 is a focal length of the fourth lens 140.

The optical image capturing system of the first preferred embodimentfurther satisfies ΣPPR=f/f1+f/f3=2.4734; ΣNPR=f/f2+f/f4=−1.7239;ΣPPR/|ΣNPR|=1.4348; |f/f2|=0.4073; |f/f3|=1.6463; and |f/f4|=1.3166,where PPR is a ratio of a focal length f of the optical image capturingsystem to a focal length fp of each of the lenses with positiverefractive power; and NPR is a ratio of a focal length f of the opticalimage capturing system to a focal length fn of each of lenses withnegative refractive power.

The optical image capturing system of the first preferred embodimentfurther satisfies InTL+InB=HOS; HOS=1.8503 mm; HOI=1.0280 mm;HOS/HOI=1.7999; HOS/f=1.3917; InTL/HOS=0.6368; and InS/HOS=0.9584, whereInTL is a distance between the object-side surface 112 of the first lens110 and the image-side surface 144 of the fourth lens 140; HOS is aheight of the image capturing system, i.e. a distance between theobject-side surface 112 of the first lens 110 and the image plane 180;InS is a distance between the aperture 100 and the image plane 180; HOIis height for image formation of the optical image capturing system,i.e., the maximum image height; and InB is a distance between theimage-side surface 144 of the fourth lens 140 and the image plane 180.

The optical image capturing system of the first preferred embodimentfurther satisfies ΣTP=0.9887 mm and ΣTP/InTL=0.8392, where ΣTP is a sumof the thicknesses of the lenses 110-140 with refractive power. It ishelpful for the contrast of image and yield rate of manufacture, andprovides a suitable back focal length for installation of otherelements.

The optical image capturing system of the first preferred embodimentfurther satisfies |R1/R2|=0.1252, where R1 is a radius of curvature ofthe object-side surface 112 of the first lens 110, and R2 is a radius ofcurvature of the image-side surface 114 of the first lens 110. Itprovides the first lens with a suitable refractive power to reduce theincrease rate of the spherical aberration.

The optical image capturing system of the first preferred embodimentfurther satisfies (R7−R8)/(R7+R8)=0.4810, where R7 is a radius ofcurvature of the object-side surface 142 of the fourth lens 140, and R8is a radius of curvature of the image-side surface 144 of the fourthlens 140. It may modify the astigmatic field curvature.

The optical image capturing system of the first preferred embodimentfurther satisfies ΣPP=f1+f3=2.4150 mm and f1/(f1+f3)=0.6656, where ΣPPis a sum of the focal lengths fp of each lens with positive refractivepower. It is helpful to share the positive refractive power of the firstlens 110 to the other positive lens to avoid the significant aberrationcaused by the incident rays.

The optical image capturing system of the first preferred embodimentfurther satisfies ΣNP=f2+f4=−4.2739 mm and f4/(f2+f4)=0.7637, where f2,and f4 are focal lengths of the second and the fourth lenses 120, 140respectively, and ΣNP is a sum of the focal lengths fn of each lens withnegative refractive power. It is helpful to share the negativerefractive power of the fourth lens 140 to the other negative lens toavoid the significant aberration caused by the incident rays.

The optical image capturing system of the first preferred embodimentfurther satisfies IN12=0.0846 mm and IN12/f=0.0636, where IN12 is adistance on the optical axis between the first lens 110 and the secondlens 120. It may correct chromatic aberration and improve theperformance.

The optical image capturing system of the first preferred embodimentfurther satisfies TP1=0.2979 mm; TP2=0.1800 mm; and(TP1+IN12)/TP2=2.1251, where TP1 is a central thickness of the firstlens 110 on the optical axis, and TP2 is a central thickness of thesecond lens 120 on the optical axis. It may control the sensitivity ofmanufacture of the system and improve the performance.

The optical image capturing system of the first preferred embodimentfurther satisfies TP3=0.3308 mm; TP4=0.1800 mm; and(TP4+IN34)/TP3=0.6197, where TP3 is a central thickness of the thirdlens 130 on the optical axis, TP4 is a central thickness of the fourthlens 140 on the optical axis, and IN34 is a distance on the optical axisbetween the third lens 130 and the fourth lens 140. It may control thesensitivity of manufacture of the system and improve the performance.

The optical image capturing system of the first preferred embodimentfurther satisfies (TP2+TP3)/ΣTP=0.5166, where TP2 and TP3 arethicknesses on the optical axis of the second and the third lenses 120,130, and ΣTP is a sum of the central thicknesses of all the lenses withrefractive power on the optical axis. It may finely modify theaberration of the incident rays and reduce the height of the system.

The optical image capturing system of the first preferred embodimentfurther satisfies |InRS11|=0.07696 mm; |InRS12|=0.03415 mm; TP1=0.29793mm; and (|InRS11|+TP1+|InRS12|)/TP1=1.3730, where InRS11 is adisplacement in parallel with the optical axis from a point on theobject-side surface 112 of the first lens 110, through which the opticalaxis passes, to a point at the maximum effective semi diameter of theobject-side surface 112 of the first lens 110; InRS12 is a displacementin parallel with the optical axis from a point on the image-side surface114 of the first lens 110, through which the optical axis passes, to apoint at the maximum effective semi diameter of the image-side surface114 of the first lens 110; and TP1 is a central thickness of the firstlens 110 on the optical axis. It may control a ratio of the centralthickness of the first lens and the effective semi diameter thickness(thickness ratio) to increase the yield rate of manufacture.

The optical image capturing system of the first preferred embodimentfurther satisfies |InRS21|=0.04442 mm; |InRS22|=0.02844 mm; TP2=0.1800mm; and (|InRS21|+TP2+|InRS22|)/TP2=1.4048, where InRS21 is adisplacement in parallel with the optical axis from a point on theobject-side surface 122 of the second lens 120, through which theoptical axis passes, to a point at the maximum effective semi diameterof the object-side surface 122 of the second lens 120; InRS22 is adisplacement in parallel with the optical axis from a point on theimage-side surface 124 of the second lens 120, through which the opticalaxis passes, to a point at the maximum effective semi diameter of theimage-side surface 124 of the second lens 120; and TP2 is a centralthickness of the second lens 120 on the optical axis. It may control aratio of the central thickness of the second lens and the effective semidiameter thickness (thickness ratio) to increase the yield rate ofmanufacture.

The optical image capturing system of the first preferred embodimentfurther satisfies |InRS31|=0.00187 mm; |InRS32|=0.14522 mm; TP3=0.33081mm; and (|InRS31|+TP3+|InRS32|)/TP3=1.4446, where InRS31 is adisplacement in parallel with the optical axis from a point on theobject-side surface 132 of the third lens 130, through which the opticalaxis passes, to a point at the maximum effective semi diameter of theobject-side surface 132 of the third lens 130; InRS32 is a displacementin parallel with the optical axis from a point on the image-side surface134 of the third lens 130, through which the optical axis passes, to apoint at the maximum effective semi diameter of the image-side surface134 of the third lens 130; and TP3 is a central thickness of the thirdlens 130 on the optical axis. It may control a ratio of the centralthickness of the third lens and the effective semi diameter thickness(thickness ratio) to increase the yield rate of manufacture.

The optical image capturing system of the first preferred embodimentfurther satisfies |InRS41|=0.03563 mm; |InRS42|=0.06429 mm; TP4=0.1800mm; and (|InRS41|+TP4+|InRS42|)/TP4=1.5551, where InRS41 is adisplacement in parallel with the optical axis from a point on theobject-side surface 142 of the fourth lens 140, through which theoptical axis passes, to a point at the maximum effective semi diameterof the object-side surface 142 of the fourth lens 140; InRS42 is adisplacement in parallel with the optical axis from a point on theimage-side surface 144 of the fourth lens 140, through which the opticalaxis passes, to a point at the maximum effective semi diameter of theimage-side surface 144 of the fourth lens 140; and TP4 is a centralthickness of the fourth lens 140 on the optical axis. It may control aratio of the central thickness of the fourth lens and the effective semidiameter thickness (thickness ratio) to increase the yield rate ofmanufacture.

The optical image capturing system of the first preferred embodimentsatisfies InRSO=0.15888 mm; InRSI=0.27211 mm; and Σ|InRS|=0.43099 mm,where Σ|InRS| is of an sum of absolute values of the displacements inparallel with the optical axis of each lens with refractive power fromthe central point to the point at the maximum effective semi diameter,i.e. Σ|InRS|=InRSO+InRSI while InRSO is of a sum of absolute values ofthe displacements in parallel with the optical axis of each lens withrefractive power from the central point on the object-side surface tothe point at the maximum effective semi diameter of the object-sidesurface, i.e. InRSO=|InRS11|+|InRS21|+|InRS31|+|InRS41| and InRSI is ofa sum of absolute values of the displacements in parallel with theoptical axis of each lens with refractive power from the central pointon the image-side surface to the point at the maximum effective semidiameter of the image-side surface, i.e.InRSI=|InRS12|+|InRS22|+|InRS32|+|InRS42|. It may increase thecapability of modifying the off-axis view field aberration of thesystem.

The optical image capturing system of the first preferred embodimentsatisfies Σ|InRS|/InTL=0.36580 and Σ|InRS|/HOS=0.23293. It may reducethe total height of the system as well as efficiently increase thecapability of modifying the off-axis view field aberration of thesystem.

The optical image capturing system of the first preferred embodimentsatisfies |InRS31|+|InRS32|+|InRS41|+|InRS42|≦0.43099 mm;(|InRS31|+|InRS32|+|InRS41|+|InRS42|)/InTL≦0.20965; and(|InRS31|+|InRS32|+|InRS41|+|InRS42|)/HOS≦0.13350. It could increase theyield rate of manufacture of the two lenses, which are the first and thesecond closest to the image side, and increase the capability ofmodifying the off-axis view field aberration of the system.

The optical image capturing system of the first preferred embodimentfurther satisfies HVT31=0.2386 mm and HVT32=0.4759 mm, where HVT31 is adistance perpendicular to the optical axis between a critical point C31on the object-side surface 132 of the third lens 130 and the opticalaxis; HVT32 is a distance perpendicular to the optical axis between acritical point C32 on the image-side surface 134 of the third lens 130and the optical axis. It may modify the aberration of the off-axis fieldof view.

The optical image capturing system of the first preferred embodimentfurther satisfies HVT41=0.3200 mm; HVT42=0.5522 mm; andHVT41/HVT42=0.5795, where HVT41 is a distance perpendicular to theoptical axis between a critical point C41 on the object-side surface 142of the fourth lens 140 and the optical axis; HVT42 is a distanceperpendicular to the optical axis between a critical point C42 on theimage-side surface 144 of the fourth lens 140 and the optical axis. Itmay modify the aberration of the off-axis field of view.

The optical image capturing system of the first preferred embodimentfurther satisfies HVT42/HOI=0.5372. It may correct the aberration of thespherical field of view.

The optical image capturing system of the first preferred embodimentfurther satisfies HVT42/HOS=0.2985. It may correct the aberration of thespherical field of view.

The optical image capturing system of the first preferred embodimentfurther satisfies NA4/NA2=1, where NA2 is an Abbe number of the secondlens 120, and NA4 is an Abbe number of the fourth lens 140. It maycorrect the aberration of the system.

The optical image capturing system of the first preferred embodimentfurther satisfies 0<(|InRS22|+|InRS31|)/IN23=0.37938 and0<(|InRS32|+|InRS41|)/IN34=7.23406. It may increase the adjustmentcapacity of the difference of the optical path, and keep the miniaturesize.

The optical image capturing system of the first preferred embodimentfurther satisfies |TDT|=0.4353% and |ODT|=1.0353%, where TDT is TVdistortion; and ODT is optical distortion.

The parameters of the lenses of the first embodiment are listed in Table1 and Table 2.

TABLE 1 f = 1.3295 mm; f/HEP = 1.83; HAF = 37.5 deg; tan(HAF) = 0.7673Radius of curvature Thickness Refractive Abbe Focal length Surface (mm)(mm) Material index number (mm) 0 Object plane 600 1 1^(st) lens/0.78234 0.29793 plastic 1.544 56.06 1.607 Aperture 2 6.24733 0.08459 32^(nd) lens 4.14538 0.18000 plastic 1.642 22.46 −3.264 4 1.37611 0.079895 3^(rd) lens −1.86793 0.33081 plastic 1.544 56.06 0.808 6 −0.378960.02500 7 4^(th) lens 0.91216 0.18000 plastic 1.544 56.06 −1.010 80.31965 0.17206 9 Filter plane 0.21 BK7_SCHOTT 10 plane 0.29 11 Imageplane plane 12 Reference wavelength: 555 nm. The clear aperture of thethird surface is 0.36 mm.

TABLE 2 Coefficients of the aspheric surfaces Surface 1 2 3 4 5 6 7 8 k  5.76611E−01   0.00000E+00   1.97452E+01   7.33565E+00   0.00000E+00−2.09962E+00 −2.65841E+01 −5.02153E+00 A4 −5.51709E−01 −2.23956E+00−3.78546E+00 −8.00950E−01   3.04031E+00   1.53566E+00 −2.73583E+00−2.12382E+00 A6   1.84419E+00 −2.09186E+00 −4.83803E+00 −1.41685E+01−7.06804E+00 −5.62446E+00   2.46306E+01   1.01033E+01 A8 −5.57618E+01−3.33312E+01 −1.43809E+02   8.62437E+01 −1.72158E+01   1.96904E+01−2.14097E+02 −4.02636E+01 A10   3.45594E+02   3.76727E+02   3.15322E+03−3.68614E+02   8.52740E+01   1.00740E+02   1.17330E+03   1.06276E+02 A12−1.49452E+03 −1.16899E+03 −1.72284E+04   1.49654E+03   4.79654E+02−2.01751E+02 −3.91183E+03 −1.77404E+02 A14   3.30750E+04 −4.00967E+03−5.54044E+03 −9.63345E+02   7.77524E+03   1.78638E+02 A16   1.16419E+04−5.33613E+00 −8.46792E+03 −1.05883E+02 A18   6.99649E+04   6.97327E+03  3.92598E+03   3.92300E+01 A20 −3.30580E+05 −4.71386E+03 −6.97617E+01−1.03791E+01

The detail parameters of the first preferred embodiment are listed inTable 1, in which the unit of radius of curvature, thickness, and focallength are millimeter, and surface 0-14 indicates the surfaces of allelements in the system in sequence from the object side to the imageside. Table 2 is the list of coefficients of the aspheric surfaces, inwhich A1-A20 indicate the coefficients of aspheric surfaces from thefirst order to the twentieth order of each aspheric surface. Thefollowing embodiments have the similar diagrams and tables, which arethe same as those of the first embodiment, so we do not describe itagain.

[Second Embodiment]

As shown in FIG. 2A and FIG. 2B, an optical image capturing system ofthe second preferred embodiment of the present invention includes, alongan optical axis from an object side to an image side, an aperture 200, afirst lens 210, a second lens 220, a third lens 230, a fourth lens 240,an infrared rays filter 270, an image plane 280, and an image sensor290.

The first lens 210 has positive refractive power, and is made ofplastic. An object-side surface thereof, which faces the object side, isa convex aspheric surface, and an image-side surface thereof, whichfaces the image side, is a convex aspheric surface.

The second lens 220 has negative refractive power, and is made ofplastic. An object-side surface 222 thereof, which faces the objectside, is a concave aspheric surface, and an image-side surface 224thereof, which faces the image side, is a concave aspheric surface. Theobject-side surface 222 has an inflection point, while the image-sidesurface 224 has two inflection points.

The third lens 230 has positive refractive power, and is made ofplastic. An object-side surface 232, which faces the object side, is aconcave aspheric surface, and an image-side surface 234, which faces theimage side, is a convex aspheric surface. The object-side surface 232has two inflection points, while the image-side surface 234 has aninflection point.

The fourth lens 240 has negative refractive power, and is made ofplastic. An object-side surface 242 thereof, which faces the objectside, is a convex surface, and an image-side surface 244 thereof, whichfaces the image side, is a concave aspheric surfaces. The object-sidesurface 242 has two inflection points, while the image-side surface 244has an inflection point.

The infrared rays filter 270 is made of glass, and between the fourthlens 240 and the image plane 280. The infrared rays filter 270 gives nocontribution to the focal length of the system.

The optical image capturing system of the second preferred embodimenthas the following parameters, which are |f2|+|f3|=2.8463 mm;|f1|+|f4|=2.1524 mm; and |f2|+|f3|>|f1|+|f4|, where f1 is a focal lengthof the first lens 210; f2 is a focal length of the second lens 220; f3is a focal length of the third lens 230; and f4 is a focal length of thefourth lens 240.

The optical image capturing system of the second preferred embodimentfurther satisfies TP3=0.3419 mm and TP4=0.1800 mm, where TP3 is athickness of the third lens 230 on the optical axis, and TP4 is athickness of the fourth lens 240 on the optical axis.

In the second embodiment, the first and the third lenses 210, 230 arepositive lenses, and their focal lengths are f1 and f3 respectively. Theoptical image capturing system of the second preferred embodimentfurther satisfies ΣPP=f1+f3=2.0394 mm and f1/(f1+f3)=0.6445, where ΣPPis a sum of the focal lengths of each positive lens. It is helpful toshare the positive refractive power of the first lens 210 to the otherpositive lens to avoid the significant aberration caused by the incidentrays.

The optical image capturing system of the second preferred embodimentfurther satisfies ΣNP=f2+f4=−2.9592 mm and f4/(f2+f4)=0.7168, where f2and f4 are focal lengths of the second and the fourth lenses 220, 240,and ΣNP is a sum of the focal lengths of each negative lens. It ishelpful to share the negative refractive power of the fourth lens 240 tothe other negative lens to avoid the significant aberration caused bythe incident rays.

The optical image capturing system of the first preferred embodimentfurther satisfies HVT31=0.2938 mm and HVT32=0.4785 mm, where HVT31 is adistance perpendicular to the optical axis between a critical point C31on the object-side surface 132 of the third lens 130 and the opticalaxis; HVT32 is a distance perpendicular to the optical axis between acritical point C32 on the image-side surface 134 of the third lens 130and the optical axis.

The optical image capturing system of the first preferred embodimentfurther satisfies HVT41=0.2727 mm and HVT42=0.5598 mm, where HVT41 is adistance perpendicular to the optical axis between a critical point C41on the object-side surface 142 of the fourth lens 140 and the opticalaxis; HVT42 is a distance perpendicular to the optical axis between acritical point C42 on the image-side surface 144 of the fourth lens 140and the optical axis.

The optical image capturing system of the first preferred embodimentfurther satisfies ΣPPR=f/f1+f/f3=2.81647; ΣNPR=f/f2+f/f4=2.19093; andΣPPR/|ΣNPR|=1.28551, where ΣPPR is a sum of the positive refractivepower of all the positive lenses, and ΣNPR is a sum of the negativerefractive power of all the negative lenses.

The parameters of the lenses of the second embodiment are listed inTable 3 and Table 4.

TABLE 3 f = 1.3161 mm; f/HEP = 2.2; HAF = 37.4999 deg; tan(HAF) = 0.7673Radius of curvature Thickness Refractive Abbe Focal length Surface (mm)(mm) Material index number (mm) 0 Object plane 600 1 1^(st) lens/0.79595 0.28690 plastic 1.535 56.05 1.314 Aperture 2 −5.39261 0.06530 32nd lens −10.03368 0.18000 plastic 1.636 23.89 −2.121 4 1.58183 0.095605 3rd lens −1.85091 0.34192 plastic 1.535 56.05 0.725 6 −0.34207 0.025007 4th lens 0.95031 0.18000 plastic 1.535 56.05 −0.838 8 0.28496 0.175389 Filter plane 0.21 BK7_SCHOTT 10 plane 0.29 11 Image Plane plane 12Reference wavelength: 555 nm

TABLE 4 Coefficients of the aspheric surfaces Surface 1 2 3 4 5 k−2.63520E+00 9.00000E+01 7.02705E+01 1.04836E+01  0.00000E+00 A4 2.54572E−01 −2.78473E+00  −4.11735E+00  −7.94187E−01   2.01072E+00 A6−2.39185E+00 −6.41042E+00  −4.75470E+00  −1.16298E+01  −2.19396E+00 A8−1.44420E+01 −2.59495E+01  −1.17215E+02  9.92997E+01 −9.25098E+00 A10−4.42055E+01 8.80139E+02 3.46562E+03 −5.19480E+02  −7.47034E+00 A12−1.49091E+03 −4.22124E+03  −1.90911E+04  1.88585E+03  1.65866E+02 A14 0.00000E+00 0.00000E+00 3.30750E+04 −4.00967E+03  −1.97492E+03 A16 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00  4.45806E+03 A18 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00  6.99649E+04 A20 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 −3.30580E+05 Surface 67 8 k −1.91663E+00 −7.29999E+01 −5.48399E+00 A4  1.54783E+00−2.67149E+00 −2.01478E+00 A6 −6.19201E+00  2.50952E+01  9.86508E+00 A8 2.06421E+01 −2.14629E+02 −4.00560E+01 A10  9.70022E+01  1.17159E+03 1.06564E+02 A12 −1.25083E+02 −3.90951E+03 −1.77622E+02 A14 −9.73701E+02 7.78461E+03  1.77782E+02 A16 −4.64315E+02 −8.48455E+03 −1.04877E+02 A18 6.97327E+03  3.92598E+03  3.92300E+01 A20 −4.71386E+03 −6.97617E+01−1.03791E+01

An equation of the aspheric surfaces of the second embodiment is thesame as that of the first embodiment, and the definitions are the sameas well.

The exact parameters of the second embodiment (with main referencewavelength as 555 nm) based on Table 3 and Table 4 are listed in thefollowing table:

Second embodiment (main reference wavelength: 555 nm) InRS11 InRS12InRS21 InRS22 InRS31 InRS32 0.01337 −0.05357 −0.05604 0.03101 −0.00848−0.16816 InRS41 InRS42 InRSO InRSI Σ|InRS| −0.04642 0.07249 0.124310.32523 0.44954 Σ|InRS|/InTL Σ|InRS|/HOS (|InRS22| + |InRS31|)/IN23(|InRS32| + |InRS41|)/IN34 0.38268 0.24298 0.4131 8.5832 (|InRS31| +|InRS32| + |InRS41| + |InRS42|)/InTL (|InRS31| + |InRS32| + |InRS41| +|InRS42|)/HOS 0.25160 0.15975 |f/f1| |f/f2| |f/f3| |f/f4| |f1/f2||f2/f3| 1.00123 0.62041 1.81523 1.57051 0.61965 2.92584 Σ PPR Σ NPR ΣPPR/| Σ NPR| Σ PP Σ NP f1/Σ PP 2.81647 2.19093 1.28551 2.03945 −2.959240.64451 f4/Σ NP IN12/f HVT41 HVT42 |ODT| |TDT| 0.28317 0.04962 0.272700.55978 1.00310 0.40309 InTL HOS HOS/HOI InS/HOS InTL/HOS Σ TP/InTL1.17472 1.85011 1.79972 0.99277 0.63495 0.84175 HVT31 HVT32 |InRS41|/TP4|InRS42|/TP4 HVT42/HOI HVT42/HOS 0.2938 0.4785 0.25787 0.40274 0.544530.30257

[Third Embodiment]

As shown in FIG. 3A and FIG. 3B, an optical image capturing system ofthe third preferred embodiment of the present invention includes, alongan optical axis from an object side to an image side, an aperture 300, afirst lens 310, a second lens 320, a third lens 330, a fourth lens 340,an infrared rays filter 370, an image plane 380, and an image sensor390.

The first lens 310 has positive refractive power, and is made ofplastic. An object-side surface 312 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 314thereof, which faces the image side, is a concave aspheric surface, andthe object-side surface 312 and the image-side surface 314 both have aninflection point respectively.

The second lens 320 has positive refractive power, and is made ofplastic. An object-side surface 322 thereof which faces the object sideis a concave aspheric surface, and an image-side surface 324 thereofwhich faces the image side is a convex aspheric surface.

The third lens 330 has negative refractive power, and is made ofplastic. An object-side surface 332, which faces the object side, is aconcave aspheric surface, and an image-side surface 334, which faces theimage side, is a convex aspheric surface, and the image-side surface 334has an inflection point.

The fourth lens 340 has a positive refractive power, and is made ofplastic. An object-side surface 342, which faces the object side, is aconvex aspheric surface, and an image-side surface 344, which faces theimage side, is a concave aspheric surface. The object-side surface 342has two inflection points, while the image-side surface 344 has aninflection point.

The infrared rays filter 370 is made of glass, and between the fourthlens 340 and the image plane 380. The infrared rays filter 370 gives nocontribution to the focal length of the system.

The parameters of the lenses of the third preferred embodiment are|f2|+|f3|=3.2561 mm; |f1|+|f4|=4.3895 mm; and |f2|+|f3|<|f1+|f4|, wheref1 is a focal length of the first lens 310; f2 is a focal length of thesecond lens 320; f3 is a focal length of the third lens 330; and f4 is afocal length of the fourth lens 340.

The optical image capturing system of the third preferred embodimentfurther satisfies TP3=0.2115 mm and TP4=0.5131 mm, where TP3 is athickness of the third lens 330 on the optical axis, and TP4 is athickness of the fourth lens 340 on the optical axis.

The optical image capturing system of the third preferred embodimentfurther satisfies ΣPP=f1+f2+f4=6.3099 mm and f1/(f1+f2+f4)=0.3720, whereΣPP is a sum of the focal lengths of each positive lens. It is helpfulto share the positive refractive power of the first lens 310 to otherpositive lenses to avoid the significant aberration caused by theincident rays.

The optical image capturing system of the third preferred embodimentfurther satisfies ΣNP=f3=−1.3357 mm and f3/(f3)=1, where ΣNP is a sum ofthe focal lengths of each negative lens.

The parameters of the lenses of the third embodiment are listed in Table5 and Table 6.

TABLE 5 f = 1.7488 mm; f/HEP = 1.82; HAF = 44.0009 deg; tan(HAF) =0.9657 Radius of curvature Thickness Refractive Abbe Focal lengthSurface (mm) (mm) Material index number (mm) 0 Object plane 600 1 1^(st)lens/ 1.10194 0.30074 plastic 1.53460 56.04928 2.34742 Aperture 27.99086 0.20524 3 2^(nd) lens −2.57494 0.40303 plastic 1.53460 56.049281.92038 4 −0.77590 0.11157 5 3^(rd) lens −0.33101 0.21155 plastic1.64250 22.45544 −1.33567 6 −0.67089 0.06000 7 4^(th) lens 0.582260.51306 plastic 1.53460 56.04928 2.04210 8 0.86075 0.20560 9 Filterplane 0.21 BK7_SCHOTT 1.51680 64.13477 Infinity 10 plane 0.51922 11Image plane plane 12 Reference wavelength: 555 nm. The clear aperture ofthe second surface is 0.45 mm.

TABLE 6 Coefficients of the aspheric surfaces Surface 1 2 3 4 5 6 7 8 k−4.11386E+00   1.11609E+02 −1.20457E+01 −2.60894E+01 −1.60828E+00−3.02168E+00 −7.36240E+00 −1.32421E+00 A4   6.45604E−02 −2.79760E−01−1.55566E+00 −2.78890E+00   4.87451E+00 −1.88477E+00 −4.73940E−01−7.69448E−01 A6   9.37001E+00 −1.70772E+00   2.22043E+01 −5.44108E+00−9.55485E+01   1.08819E+01   5.90018E−01   1.03816E+00 A8 −2.08371E+02  3.44420E+00 −4.29093E+02   2.44100E+02   9.54312E+02 −7.59696E+01−1.09086E+00 −1.24944E+00 A10   2.45407E+03 −5.70037E+01   4.72722E+03−2.82690E+03 −6.36131E+03   4.43236E+02   1.91543E+00   1.15891E+00 A12−1.74873E+04   3.13103E+02 −3.37154E+04   1.77963E+04   2.99146E+04−1.53273E+03 −2.14594E+00 −7.58232E−01 A14   7.67016E+04 −1.14091E+03  1.53196E+05 −6.60567E+04 −9.56348E+04   3.13152E+03   1.44027E+00  3.27720E−01 A16 −2.03736E+05   2.44076E+03 −4.32864E+05   1.44067E+05  1.94093E+05 −3.75205E+03 −5.57990E−01 −8.76837E−02 A18   2.99396E+05−2.82699E+03   6.99029E+05 −1.71204E+05 −2.23641E+05   2.43713E+03  1.14320E−01   1.29417E−02 A20 −1.86602E+05   1.34465E+03 −4.96564E+05  8.55440E+04   1.10909E+05 −6.55460E+02 −9.18324E−03 −7.90229E−04

An equation of the aspheric surfaces of the third embodiment is the sameas that of the first embodiment, and the definitions are the same aswell.

The exact parameters of the third embodiment (with main referencewavelength as 555 nm) based on Table 5 and Table 6 are listed in thefollowing table:

InRS11 InRS12 InRS21 InRS22 InRS31 InRS32 0.09255 −0.01411 −0.12423−0.32720 −0.38369 −0.29644 InRS41 InRS42 InRSO InRSI Σ|InRS| 0.076200.09088 0.67668 0.72863 1.40530 Σ|InRS|/InTL Σ|InRS|/HOS (|InRS22| +|InRS31|)/IN23 (|InRS32| + |InRS41|)/IN34 0.77848 0.51288 6.3720 6.2106(|InRS31| + |InRS32| + |InRS41| + |InRS42|)/InTL (|InRS31| + |InRS32| +|InRS41| + |InRS42|)/HOS 0.46932 0.30920 |f/f1| |f/f2| |f/f3| |f/f4||f1/f2| |f2/f3| 0.74498 0.91064 1.30929 0.85636 1.22237 1.43777 ΣPPRΣNPR ΣPPR/|ΣNPR| ΣPP ΣNP f1/ΣPP 2.51199 1.30929 1.91859 1.01175 3.962482.32016 f4/ΣNP IN12/f |InRS41|/TP4 |InRS42|/TP4 |ODT| |TDT| 0.515360.11736 0.14853 0.17714 2.83850 0.48954 InTL HOS HOS/HOI InS/HOSInTL/HOS ETP/InTL 1.80518 2.74000 1.52902 0.96622 0.65882 0.79126 HVT31HVT32 HVT41 HVT42 HVT42/HOI HVT42/HOS 0 0 0.72659 1.01863 0.568430.37176

[Fourth Embodiment]

As shown in FIG. 4A and FIG. 4B, an optical image capturing system ofthe fourth preferred embodiment of the present invention includes, alongan optical axis from an object side to an image side, an aperture 400, afirst lens 410, a second lens 420, a third lens 430, a fourth lens 440,an infrared rays filter 470, an image plane 480, and an image sensor490.

The first lens 410 has positive refractive power, and is made ofplastic. An object-side surface 412 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 414thereof, which faces the image side, is a concave aspheric surface, andeach of them has an inflection point respectively.

The second lens 420 has positive refractive power, and is made ofplastic. An object-side surface thereof, which faces the object side, isa concave aspheric surface, and an image-side surface thereof, whichfaces the image side, is a convex aspheric surface.

The third lens 430 has negative refractive power, and is made ofplastic. An object-side surface 432, which faces the object side, is aconcave aspheric surface, and an image-side surface 434, which faces theimage side, is a convex aspheric surface. The object-side surface 432has two inflection points, while the image-side surface 434 has aninflection point.

The fourth lens 440 has positive refractive power, and is made ofplastic. An object-side surface 442, which faces the object side, is aconvex aspheric surface, and an image-side surface 444, which faces theimage side, is a concave aspheric surface. The object-side surface 442and the image-side surface 444 both have an inflection pointrespectively.

The infrared rays filter 470 is made of glass, and between the fourthlens 440 and the image plane 480. The infrared rays filter 470 gives nocontribution to the focal length of the system.

The optical image capturing system of the fourth preferred embodimenthas the following parameters, which are |f2|+|f3|=4.3448 mm;|f1|+|f4|=3.9627 mm; and |f2|+|f3|>|f1|+|f4|, where f1 is a focal lengthof the first lens 410; f2 is a focal length of the second lens 420; f3is a focal length of the third lens 430; and f4 is a focal length of thefourth lens 440.

The optical image capturing system of the fourth preferred embodimentfurther satisfies TP3=0.1900 mm and TP4=0.5171 mm, where TP3 is athickness of the third lens on the optical axis, and TP4 is a thicknessof the fourth lens on the optical axis.

In the fourth embodiment, the optical image capturing system of thefourth preferred embodiment further satisfies ΣPP=f1+f2+f4=6.9824 mm andf1/(f1+f2+f4)=0.3392, where ΣPP is a sum of the focal lengths of eachpositive lens. It is helpful to share the positive refractive power ofthe first lens 410 to other positive lenses to avoid the significantaberration caused by the incident rays.

The optical image capturing system of the fourth preferred embodimentfurther satisfies ΣNP=f3=−1.3251 mm and f3/(f3)=1, where ΣNP is a sum ofthe focal lengths of each negative lens.

The parameters of the lenses of the fourth embodiment are listed inTable 7 and Table 8.

TABLE 7 f = 1.7995 mm; f/HEP = 2.037; HAF = 44.0013 deg; tan(HAF) =0.9657 Radius of curvature Thickness Refractive Abbe Focal lengthSurface (mm) (mm) Material index number (mm) 0 Object plane 600 1 1^(st)lens/ 1.06261 0.27856 plastic 1.535 56.05 2.368 Aperture 2 5.904480.21824 3 2^(nd) lens −3.07258 0.28878 plastic 1.535 56.05 3.020 4−1.09535 0.14992 5 3^(rd) lens −0.34003 0.19000 plastic 1.642 22.46−1.325 6 −0.68687 0.06000 7 4^(th) lens 0.52196 0.51706 plastic 1.53556.05 1.594 8 0.87651 0.22691 9 Filter plane 0.21 BK7_SCHOTT 1.517 64.13Infinity 10 plane 0.48809 11 Image plane plane 12 Reference wavelength:555 nm. The clear aperture of the second surface is 0.477 mm.

TABLE 8 Coefficients of the aspheric surfaces Surface 1 2 3 4 5 6 7 8 k−4.11386E+00   1.11609E+02 −1.20457E+01 −2.60894E+01 −1.60828E+00−3.02168E+00 −6.90987E+00 −1.16395E+00 A4   1.89663E−01 −4.42882E−01−1.64918E+00 −1.26975E+00   5.72303E+00 −1.58295E+00 −4.49130E−01−8.19241E−01 A6   7.83824E+00 −1.24645E+00   2.35185E+01 −1.36831E+01  9.42979E+01   1.00231E+01   5.93576E−01   1.06732E+00 A8 −2.01070E+02−3.10954E−01 −4.45396E+02   2.85720E+02   9.49136E+02 −7.13304E+01−1.09774E+00 −1.26303E+00 A10   2.43526E+03 −5.27607E+01   4.79314E+03−2.93450E+03   6.37753E+03   4.33436E+02   1.90775E+00   1.15763E+00 A12−1.74872E+04   3.13009E+02 −3.37154E+04   1.78985E+04   2.99953E+04−1.52494E+03 −2.14594E+00 −7.56626E−01 A14   7.67016E+04 −1.14091E+03  1.53196E+05 −6.60525E+04   9.57659E+04   3.12107E+03   1.44027E+00  3.28469E−01 A16 −2.03736E+05   2.44076E+03 −4.32864E+05   1.44068E+05  1.94093E+05 −3.73817E+03 −5.57990E−01 −8.82160E−02 A18   2.99396E+05−2.82699E+03   6.99029E+05 −1.71204E+05 −2.23641E+05   2.43713E+03  1.14320E−01   1.29417E−02 A20 −1.86602E+05   1.34465E+03 −4.96564E+05  8.55440E+04   1.10909E+05 −6.55460E+02 −9.18324E−03 −7.90229E−04

An equation of the aspheric surfaces of the fourth embodiment is thesame as that of the first embodiment, and the definitions are the sameas well.

The exact parameters of the fourth embodiment (with main referencewavelength as 555 nm) based on Table 7 and Table 8 are listed in thefollowing table:

Fourth embodiment (main reference wavelength: 555 nm) InRS11 InRS12InRS21 InRS22 InRS31 InRS32 0.08569 −0.02436 −0.13024 −0.23075 −0.31306−0.24465 InRS41 InRS42 InRSO InRSI Σ|InRS| 0.09386 −0.02821 0.622850.52797 1.15082 Σ|InRS|/InTL Σ|InRS|/HOS (|InRS22| + |InRS31|)/IN23(|InRS32| + |InRS41|)/IN34 0.67594 0.43798 3.6273 5.6419 (|InRS31| +|InRS32| + |InRS41| + |InRS42|)/InTL (|InRS31| + |InRS32| + |InRS41| +|InRS42|)/HOS 0.39927 0.25871 |f/f1| |f/f2| |f/f3| |f/f4| |f1/f2||f2/f3| 0.75976 0.59591 1.35802 1.12873 0.78434 2.27888 ΣPPR ΣNPRΣPPR/|ΣNPR| ΣPP ΣNP f1/ΣPP 2.48440 1.35802 1.82943 1.04339 4.613932.26997 f4/ΣNP IN12/f |InRS41|/TP4 |InRS42|/TP4 |ODT| |TDT| 0.345530.12128 0.18153 0.05456 2.77932 1.07666 InTL HOS HOS/HOI InS/HOSInTL/HOS ETP/InTL 1.70256 2.62756 1.46627 0.96739 0.64796 0.74852 HVT31HVT32 HVT41 HVT42 HVT42/HOI HVT42/HOS 0 0.7088 0.78677 0.96171 0.536670.36601

[Fifth Embodiment]

As shown in FIG. 5A and FIG. 5B, an optical image capturing system ofthe fifth preferred embodiment of the present invention includes, alongan optical axis from an object side to an image side, an aperture 500, afirst lens 510, a second lens 520, a third lens 530, a fourth lens 540,an infrared rays filter 570, an image plane 580, and an image sensor590.

The first lens 510 has positive refractive power, and is made ofplastic. An object-side surface 512 thereof which faces the object sideis a convex aspheric surface, and an image-side surface 514 thereofwhich faces the image side is a concave aspheric surface, wherein theobject-side surface 512 and the image-side surface 514 both have aninflection point respectively.

The second lens 520 has positive refractive power, and is made ofplastic. An object-side surface 522 thereof, which faces the objectside, is a concave aspheric surface, and an image-side surface 524thereof, which faces the image side, is a convex aspheric surface.

The third lens 530 has negative refractive power, and is made ofplastic. An object-side surface 532, which faces the object side, is aconcave aspheric surface, and an image-side surface 534, which faces theimage side, is a convex aspheric surface. The image-side surface 534 hasan inflection point.

The fourth lens 540 has a positive refractive power, and is made ofplastic. An object-side surface 542, which faces the object side, is aconvex aspheric surface, and an image-side surface 544, which faces theimage side, is a concave aspheric surface. The object-side surface 542has two inflection points, while the image-side surface 544 has aninflection point.

The infrared rays filter 570 is made of glass, and between the fourthlens 540 and the image plane 580. The infrared rays filter 570 gives nocontribution to the focal length of the system.

The parameters of the lenses of the fifth preferred embodiment are|f2|+|f3|=7.6703 mm; |f1|+|f4|=7.7843 mm; and |f2|+|f3|>|f1|+|f4|, wheref1 is a focal length of the first lens 510; f2 is a focal length of thesecond lens 520; f3 is a focal length of the third lens 530; and f4 is afocal length of the fourth lens 540.

The optical image capturing system of the fifth preferred embodimentfurther satisfies TP3=0.3996 mm and TP4=0.9713 mm, where TP3 is athickness of the third lens 530 on the optical axis, and TP4 is athickness of the fourth lens 540 on the optical axis.

The optical image capturing system of the fifth preferred embodimentfurther satisfies ΣPP=f1+f2+f4=13.1419 mm and f1/(f1+f2+f4)=0.2525,where ΣPP is a sum of the focal lengths of each positive lens. It ishelpful to share the positive refractive power of the first lens 510 toother positive lenses to avoid the significant aberration caused by theincident rays.

The optical image capturing system of the fifth preferred embodimentfurther satisfies ΣNP=f3=−2.3127 mm; and f3/(f3)=1, where ΣNP is a sumof the focal lengths of each negative lens.

The parameters of the lenses of the fifth embodiment are listed in Table9 and Table 10.

TABLE 9 f = 3.4320 mm; f/HEP = 2.28; HAF = 39.5498 deg; tan(HAF) =0.8258 Radius of curvature Thickness Refractive Abbe Focal lengthSurface (mm) (mm) Material index number (mm) 0 Object plane 600 1 1^(st)lens/ 1.50982 0.61808 plastic 1.53460 56.04928 3.31779 Aperture 28.53969 0.32873 3 2^(nd) lens −6.01490 0.35414 plastic 1.53460 56.049285.35759 4 −1.98450 0.11553 5 3rd lens −1.05901 0.39958 plastic 1.6425022.45544 −2.31270 6 −4.15119 0.20863 7 4^(th) lens 1.15231 0.97132plastic 1.53460 56.04928 4.46650 8 1.56696 0.17398 9 Filter plane 0.61BK_7 1.51680 64.13477 10 plane 0.67 11 Image plane plane 12 Referencewavelength: 555 nm. The clear aperture of the third surface is 0.72 mm.

TABLE 10 Coefficients of the aspheric surfaces Surface 1 2 3 4 5 6 7 8 k  1.91608E+00 −9.90000E+01   3.12661E+01 −7.96538E+00 −8.30362E−01−6.96585E+00 −1.18798E+01 −7.01760E−01 A4 −1.04983E−01 −7.00916E−02−1.45169E−01 −4.53803E−01 −5.41253E−01 −1.20350E+00 −4.13567E−01−2.64281E−01 A6   5.81412E−01   1.32838E−01   6.30379E−01   1.53028E+00  2.79171E+00   3.66683E+00   2.54369E−01   1.37894E−01 A8 −6.71811E+00−9.11601E−01 −1.13291E+01 −1.23692E+01 −1.51326E+01 −8.89633E+00−2.66026E−03 −6.37186E−02 A10   3.53193E+01   7.64045E−01   6.80561E+01  4.61028E+01   5.13829E+01   1.65534E+01 −1.50320E−01   2.24580E−02 A12−1.10122E+02   3.05178E+00 −2.37992E+02 −9.64720E+01 −9.52092E+01−2.06411E+01   1.19574E−01 −6.02309E−03 A14   2.06492E+02 −9.34726E+00  4.98312E+02   1.17099E+02   9.23444E+01   1.65593E+01 −4.20365E−02  1.12736E−03 A16 −2.29728E+02   8.04581E+00 −6.30979E+02 −7.95639E+01−3.38893E+01 −8.18699E+00   7.84666E−03 −1.32311E−04 A18   1.38592E+02−1.22151E+00   4.48459E+02   2.63131E+01 −1.04010E+01   2.27325E+00−7.49829E−04   8.32178E−06 A20 −3.50697E+01   1.40638E−01 −1.38023E+02−3.19378E+00   8.37135E+00 −2.71850E−01   2.89993E−05 −2.16110E−07

An equation of the aspheric surfaces of the fifth embodiment is the sameas that of the first embodiment, and the definitions are the same aswell.

The exact parameters of the fifth embodiment (with main referencewavelength as 555 nm) based on Table 9 and Table 10 are listed in thefollowing table:

Fifth embodiment (main reference wavelength: 555nm) InRS11 InRS12 InRS21InRS22 InRS31 InRS32 0.19256 −0.01037 −0.14846 −0.33742 −0.36837−0.25666 InRS41 InRS42 InRSO InRSI Σ|InRS| −0.19362 −0.25529 0.903010.85974 1.76275 Σ|InRS|/InTL Σ|InRS|/HOS (|InRS22| + |InRS31|)/IN23(|InRS32| + |InRS41|)/IN34 0.58836 0.39612 6.1091 2.1582 (|InRS31| +|InRS32| + |InRS41| + |InRS42|)/InTL (|InRS31| + |InRS32| + |InRS41| +|InRS42|)/HOS 0.35846 0.24134 |f/f1| |f/f2| |f/f3| |f/f4| |f1/f2||f2/f3| 1.03444 0.64059 1.48400 0.76840 0.61927 2.31660 ΣPPR ΣNPRΣPPR/|ΣNPR| ΣPP ΣNP f1/ΣPP 2.44343 1.48400 1.64652 1.00509 9.824093.30099 f4/ΣNP IN12/f |InRS41|/TP4 |InRS42|/TP4 |ODT| |TDT| 0.454650.09578 0.19933 0.26283 2.01839 1.61834 InTL HOS HOS/HOI InS/HOSInTL/HOS ETP/InTL 2.99601 4.44999 1.55812 0.95673 0.67326 0.78208 HVT31HVT32 HVT41 HVT42 HVT42/HOI HVT42/HOS 0 1.0084 0.61419 1.21734 0.426240.27356

[Sixth Embodiment]

As shown in FIG. 6A and FIG. 6B, an optical image capturing system ofthe sixth preferred embodiment of the present invention includes, alongan optical axis from an object side to an image side, an aperture 600, afirst lens 610, a second lens 620, a third lens 630, a fourth lens 640,an infrared rays filter 670, an image plane 680, and an image sensor690.

The first lens 610 has positive refractive power, and is made ofplastic. An object-side surface 612 thereof which faces the object sideis a convex aspheric surface, and an image-side surface 614 thereofwhich faces the image side is a concave aspheric surfaces. Theobject-side surface 612 and the image-side surface 614 both have aninflection point respectively.

The second lens 620 has positive refractive power, and is made ofplastic. An object-side surface 622 thereof which faces the object sideis a concave aspheric surface, and an image-side surface 624 thereofwhich faces the image side is a convex aspheric surface.

The third lens 630 has negative refractive power, and is made ofplastic. An object-side surface 632, which faces the object side, is aconcave aspheric surface, and an image-side surface 634, which faces theimage side, is a convex aspheric surface. The object-side surface 632has two inflection points, while the image-side surface 634 has aninflection point.

The fourth lens 640 has positive refractive power, and is made ofplastic. An object-side surface 642, which faces the object side, is aconvex aspheric surface, and an image-side surface 644, which faces theimage side, is a concave aspheric surface, and the object-side surface642 has two inflection points, while the image-side surface 644 has aninflection point.

The infrared rays filter 670 is made of glass, and between the fourthlens 640 and the image plane 680. The infrared rays filter 670 gives nocontribution to the focal length of the system.

The optical image capturing system of the sixth preferred embodiment hasthe following parameters, which are |f2|+|f3|=5.7804 mm; If|f1|+|f4|=8.0922 mm; and |f2|+|f3|<|f1|+|f4|.

The optical image capturing system of the sixth preferred embodimentfurther satisfies TP3=0.5226 mm and TP4=0.8727 mm, where TP3 is athickness of the third lens on the optical axis, and TP4 is a thicknessof the fourth lens on the optical axis.

The optical image capturing system of the sixth preferred embodimentfurther satisfies ΣPP=f1±f2+f4=11.8154 mm and f1/(f1+f2+f4)=0.2908,where ΣPP is a sum of the focal lengths of each positive lens. It ishelpful to share the positive refractive power of the first lens 610 toother positive lenses to avoid the significant aberration caused by theincident rays.

The optical image capturing system of the sixth preferred embodimentfurther satisfies ΣNP=f3=−2.0572 mm and f3/(f3)=1, where ΣNP is a sum ofthe focal lengths of each negative lens.

The parameters of the lenses of the sixth embodiment are listed in Table11 and Table 12.

TABLE 11 f = 3.4357 mm; f/HEP = 2.441; HAF = 39.5499 deg; tan(HAF) =0.8258 Radius of curvature Thickness Refractive Abbe Focal lengthSurface (mm) (mm) Material index number (mm) 0 Object plane 600 1 1^(st)lens/ 1.37505 0.39474 plastic 1.53460 56.04928 3.43574 Aperture 24.87501 0.48225 3 2^(nd) lens −5.64751 0.36141 plastic 1.53460 56.049283.72326 4 −1.50824 0.13838 5 3rd lens −0.89310 0.52263 plastic 1.6425022.45544 −2.05715 6 −3.33251 0.22392 7 4^(th) lens 1.05425 0.87270plastic 1.53460 56.04928 4.65641 8 1.29716 0.17398 9 Filter plane 0.61BK_7 1.51680 64.13477 10 plane 0.67 11 Image plane plane 12 Referencewavelength: 555 nm. The clear aperture of the fifth surface is 0.84291mm.

TABLE 12 Coefficients of the aspheric surfaces Surface 1 2 3 4 5 6 7 8 k  8.09170E−01   3.53697E+01   3.24901E+01 −6.13868E+00 −2.34427E−01−6.13591E+00 −9.87167E+00 −4.83890E+00 A4 −4.43062E−02 −6.29081E−02−1.48904E−01 −5.55294E−01 −3.33293E−01 −1.18661E+00 −4.76987E−01−1.93095E−01 A6   4.60275E−01 −1.10186E−01   4.50578E−01   1.99199E+00  2.95033E+00   3.67935E+00   3.20089E−01   1.26435E−01 A8 −6.08161E+00  2.01953E−01 −1.07366E+01 −1.30027E+01 −1.47850E+01 −8.96834E+00  1.05767E−03 −6.18637E−02 A10   3.48125E+01 −1.63820E+00   6.66110E+01  4.62836E+01   5.10227E+01   1.65676E+01 −1.59616E−01   2.26025E−02 A12−1.13221E+02   3.15908E+00 −2.40552E+02 −9.50780E−01 −9.61802E−01−2.05674E+01   1.19574E−01 −6.08902E−03 A14   2.15144E+02 −3.48735E+00  5.12952E+02   1.14955E+02   9.39723E+01   1.64749E+01 −4.20365E−02  1.12005E−03 A16 −2.36436E+02   1.48079E+00 −6.45513E+02 −7.88321E+01−3.45958E+01 −8.16248E+00   7.84666E−03 −1.29548E−04 A18   1.38592E+02−1.22151E+00   4.48459E+02   2.63131E+01 −1.04010E+01   2.27325E+00−7.49829E−04   8.32178E−06 A20 −3.50697E+01   1.40638E−01 −1.38023E+02−3.19378E+00   8.37135E+00 −2.71850E−01   2.89993E−05 −2.16110E−07

An equation of the aspheric surfaces of the sixth embodiment is the sameas that of the first embodiment, and the definitions are the same aswell.

The exact parameters of the sixth embodiment (with main referencewavelength as 555 nm) based on Table 11 and Table 12 are listed in thefollowing table:

Sixth embodiment (main reference wavelength: 555 nm) InRS11 InRS12InRS21 InRS22 InRS31 InRS32 0.19070 0.02842 −0.16242 −0.36086 −0.38418−0.31651 InRS41 InRS42 InRSO InRSI Σ|InRS| −0.17292 −0.18713 0.910210.89292 1.80313 Σ|InRS|/InTL Σ|InRS|/HOS (|InRS22| + |InRS31|)/IN23(|InRS32| + |InRS41|)/IN34 0.60184 0.40520 5.3842 2.1857 (|InRS31| +|InRS32| + |InRS41| + |InRS42|)/InTL (|InRS31| + |InRS32| + |InRS41| +|InRS42|)/HOS 0.35405 0.23837 |f/f1| |f/f2| |f/f3| |f/f4| |f1/f2||f2/f3| 0.99999 0.92277 1.67013 0.73784 0.92278 1.80991 ΣPPR ΣNPRΣPPR/|ΣNPR| ΣPP ΣNP f1/ΣPP 2.66060 1.67013 1.59305 1.37859 8.379672.49221 f4/ΣNP IN12/f |InRS41|/TP4 |InRS42|/TP4 |ODT| |TDT| 0.555680.14037 0.19814 0.21443 1.87598 1.47595 InTL HOS HOS/HOI InS/HOSInTL/HOS ΣTP/InTL 2.99602 4.45000 1.55812 0.95715 0.67326 0.71811 HVT31HVT32 HVT41 HVT42 HVT42/HOI HVT42/HOS 0 1.1365 0.61754 1.17747 0.412280.26460

[Seventh Embodiment]

As shown in FIG. 7A and FIG. 7B, an optical image capturing system ofthe seventh preferred embodiment of the present invention includes,along an optical axis from an object side to an image side, an aperture700, a first lens 710, a second lens 720, a third lens 770, a fourthlens 740, an infrared rays filter 770, an image plane 780, and an imagesensor 790.

The first lens 710 has positive refractive power, and is made ofplastic. An object-side surface 712 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 714thereof, which faces the image side, is a convex aspheric surface, andthe object-side surface 712 has an inflection point.

The second lens 720 has positive refractive power, and is made ofplastic. An object-side surface 722 thereof which faces the object sideis a concave aspheric surface, and an image-side surface 724 thereofwhich faces the image side is a convex aspheric surface.

The third lens 730 has negative refractive power, and is made ofplastic. An object-side surface 732, which faces the object side, is aconcave aspheric surface, and an image-side surface 734, which faces theimage side, is a convex aspheric surface. The image-side surface 732 hastwo inflection points, while the image-side surface 734 has aninflection point.

The fourth lens 740 has a positive refractive power, and is made ofplastic. An object-side surface 742, which faces the object side, is aconvex aspheric surface, and an image-side surface 744, which faces theimage side, is a concave aspheric surface. The object-side surface 742and the image-side surface 744 both have an inflection pointrespectively.

The infrared rays filter 770 is made of glass, and between the fourthlens 740 and the image plane 780. The infrared rays filter 770 gives nocontribution to the focal length of the system.

The parameters of the lenses of the third preferred embodiment are|f2|+|f3|=6.3879 mm; |f1|+|f4|=7.3017 mm; and |f2|+|f3|<|f1|+|f4|, wheref1 is a focal length of the first lens 710; f2 is a focal length of thesecond lens 720; f7 is a focal length of the third lens 730; and f4 is afocal length of the fourth lens 740.

The optical image capturing system of the third preferred embodimentfurther satisfies TP3=0.342 mm and TP4=0.876 mm, where TP3 is athickness of the third lens 730 on the optical axis, and TP4 is athickness of the fourth lens 740 on the optical axis.

The optical image capturing system of the third preferred embodimentfurther satisfies ΣPP=f1+f2+f4=10.9940 mm and f1/(f1+f2+f4)=0.2801,where ΣPP is a sum of the focal lengths of each positive lens. It ishelpful to share the positive refractive power of the first lens 710 toother positive lenses to avoid the significant aberration caused by theincident rays.

The optical image capturing system of the third preferred embodimentfurther satisfies ΣNP=f3=−2.6956 mm and f3/(f3)=1, where ΣNP is a sum ofthe focal lengths of each negative lens.

The parameters of the lenses of the third embodiment are listed in Table13 and Table 14.

TABLE 13 f = 2.6019 mm; f/HEP = 1.600; HAF = 40.700 deg; tan(HAF) =0.8601 Radius of curvature Thickness Refractive Abbe Focal lengthSurface (mm) (mm) Material index number (mm) 0 Object plane 600 1 1^(st)lens/ 1.71292 0.38171 plastic 1.54410 56.06368 3.07935 Aperture 2−82.93521 0.06127 3 Shading plane 0.32214 Sheet 4 2^(nd) lens −2.994530.55905 plastic 1.54410 56.06368 3.69227 5 −1.28410 0.18224 6 3^(rd)lens −0.49647 0.34177 plastic 1.64250 22.45544 −2.69561 7 −0.881520.03097 8 4^(th) lens 1.05292 0.87625 plastic 1.53460 56.04928 4.22234 91.39616 0.40577 10 Filter plane 0.21 BK7 1.51680 64.13477 11 plane0.51339 12 Image plane plane Reference wavelength: 555 nm. The clearaperture of the third surface is 0.675 mm.

TABLE 14 Coefficients of the aspheric surfaces Surface 1 2 4 5 6 7 8 9 k−8.09736E−01   9.90000E+01   1.38546E+01 −4.78421E+00 −3.91527E+00−1.53405E+00 −1.19640E+01 −5.30860E+00 A4   3.11337E−04 −1.47267E−01−2.45721E−01 −2.55177E−01 −1.04737E+00 −8.42553E−02 −3.47164E−02−5.45854E−02 A6 −4.23221E−01   2.05335E−01   1.11283E+00 −1.35694E+00  1.91291E+00   1.14144E−01 −1.11575E−01 −3.54359E−03 A8   1.99682E+00−2.29326E+00 −7.97159E+00   5.61291E+00 −1.03818E+00   4.85341E−01  1.55890E−01   1.43811E−02 A10 −8.98568E+00   6.67714E+00   2.67059E+01−1.27982E+01   8.28666E−02 −5.78511E−01 −1.02888E−01 −8.50527E−03 A12  2.55814E+01 −1.26431E+01 −4.89500E+01   1.83626E+01 −7.20630E−01  1.37111E−01   3.67156E−02   2.28063E−03 A14 −4.56047E+01   1.25240E+01  4.32986E+01 −1.54412E+01   8.84894E−01   8.58529E−02 −6.09560E−03−2.76813E−04 A16   3.35356E+01 −4.95913E+00 −1.11707E+01   5.47973E+00−3.65905E−01 −3.73888E−02   1.92810E−04   9.06057E−06 A18   0.00000E+00  0.00000E+00   0.00000E+00   0.00000E+00   0.00000E+00   0.00000E+00  0.00000E+00   0.00000E+00 A20   0.00000E+00   0.00000E+00  0.00000E+00   0.00000E+00   0.00000E+00   0.00000E+00   0.00000E+00  0.00000E+00

An equation of the aspheric surfaces of the third embodiment is the sameas that of the first embodiment, and the definitions are the same aswell.

The exact parameters of the third embodiment (with main referencewavelength as 555 nm) based on Table 13 and Table 14 are listed in thefollowing table:

Seventh embodiment (main reference wavelength: 555 nm) InRS11 InRS12InRS21 InRS22 InRS31 InRS32 0.10245 −0.04085 −0.18437 −0.44347 −0.51083−0.37921 InRS41 InRS42 InRSO InRSI Σ|InRS| 0.11772 0.04936 0.915380.91289 1.82827 Σ|InRS|/InTL Σ|InRS|/HOS (|InRS22| + |InRS31|)/IN23(|InRS32| + |InRS41|)/IN34 0.66352 0.47065 5.2365 16.0459 (|InRS31| +|InRS32| + |InRS41| + |InRS42|)/InTL (|InRS31| + |InRS32| + |InRS41| +|InRS42|)/HOS 0.38366 0.27214 |f/f1| |f/f2| |f/f3| |f/f4| |f1/f2||f2/f3| 0.84495 0.70469 0.96524 0.61622 0.83400 1.36973 Σ PPR Σ NPR ΣPPR/| Σ NPR| Σ PP Σ NP f1/Σ PP 2.16586 0.96524 2.24387 0.38374 7.914618.02457 f4/Σ NP IN12/f |InRS41|/TP4 |InRS42|/TP4 |ODT| |TDT| 0.533490.14736 0.13435 0.05633 2.57432 0.27626 InTL HOS HOS/HOI InS/HOSInTL/HOS Σ TP/InTL 2.75540 3.88456 1.68894 0.97363 0.70932 0.78347 HVT31HVT32 HVT41 HVT42 HVT42/HOI HVT42/HOS 0 0 1.11330 1.39937 0.608420.36024

[Eighth Embodiment]

As shown in FIG. 8A and FIG. 8B, an optical image capturing system ofthe third preferred embodiment of the present invention includes, alongan optical axis from an object side to an image side, an aperture 800, afirst lens 810, a second lens 820, a third lens 880, a fourth lens 840,an infrared rays filter 870, an image plane 880, and an image sensor890.

The first lens 810 has positive refractive power, and is made ofplastic. An object-side surface 812 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 814thereof, which faces the image side, is a concave aspheric surface, andthe object-side surface 812 and the image-side surface 814 both have aninflection point respectively.

The second lens 820 has negative refractive power, and is made ofplastic. An object-side surface 822 thereof which faces the object sideis a concave aspheric surface, and an image-side surface 824 thereofwhich faces the image side is a convex aspheric surface.

The third lens 830 has positive refractive power, and is made ofplastic. An object-side surface 832, which faces the object side, is aconcave aspheric surface, and an image-side surface 834, which faces theimage side, is a convex aspheric surface. The object-side surface 832has two inflection points, while the image-side surface 834 has aninflection point.

The fourth lens 840 has a negative refractive power, and is made ofplastic. An object-side surface 842, which faces the object side, is aconvex aspheric surface, and an image-side surface 844, which faces theimage side, is a concave aspheric surface. The object-side surface 842and the image-side surface 844 both have an inflection pointrespectively.

The infrared rays filter 870 is made of glass, and between the fourthlens 840 and the image plane 880. The infrared rays filter 870 gives nocontribution to the focal length of the system.

The parameters of the lenses of the third preferred embodiment are|f2|+|f3|=5.7651 mm; |f1|+|f4|=7.6347 mm; and |f2|+|f3|<|f1|+|f4|, wheref1 is a focal length of the first lens 810; f2 is a focal length of thesecond lens 820; f3 is a focal length of the third lens 830; and f4 is afocal length of the fourth lens 840.

The optical image capturing system of the third preferred embodimentfurther satisfies TP3=0.342 mm and TP4=0.876 mm, where TP3 is athickness of the third lens 830 on the optical axis, and TP4 is athickness of the fourth lens 840 on the optical axis.

The optical image capturing system of the third preferred embodimentfurther satisfies ΣPP=f1+f2+f4=10.8016 mm and f1/(f1+f2+f4)=0.3169,where ΣPP is a sum of the focal lengths of each positive lens. It ishelpful to share the positive refractive power of the first lens 810 toother positive lenses to avoid the significant aberration caused by theincident rays.

The optical image capturing system of the third preferred embodimentfurther satisfies ΣNP=f3=−2.598 mm and f3/(f3)=1, where ΣNP is a sum ofthe focal lengths of each negative lens.

The parameters of the lenses of the third embodiment are listed in Table15 and Table 16.

TABLE 15 f = 2.602 mm; f/HEP = 2.051; HAF = 40.700 deg; tan(HAF) =0.8601 Radius of curvature Thickness Refractive Abbe Focal lengthSurface (mm) (mm) Material index number (mm) 0 Object plane 600 1 1^(st)lens/ 1.56137 0.38171 plastic 1.54410 56.06368 3.42296 Aperture 28.67919 0.06127 3 Shading plane 0.32214 Sheet 4 2^(nd) lens −4.187770.55905 plastic 1.54410 56.06368 3.16687 5 −1.28128 0.18224 6 3^(rd)lens −0.49776 0.34177 plastic 1.64250 22.45544 −2.59818 7 −0.897640.03097 8 4^(th) lens 1.05854 0.87625 plastic 1.53460 56.04928 4.21178 91.41631 0.40577 10 Filter plane 0.21 BK7 1.51680 64.13477 11 plane0.51339 12 Image plane plane Reference wavelength: 555 nm. The clearaperture of the second surface is 0.45 mm.

TABLE 16 Coefficients of the aspheric surfaces Surface 1 2 4 5 6 7 8 9 k  7.06758E−01   9.90000E+01   2.84329E+01 −1.70758E+00 −3.83499E+00−1.24082E+00 −1.19640E+01 −5.05896E+00 A4 −2.69167E−02 −1.32998E−01−3.08525E−01 −1.68528E−01 −1.10160E+00 −4.87334E−02 −4.41395E−02−5.77518E−02 A6 −2.77792E−01   2.62372E−01   1.32713E+00 −1.48439E+00  1.86752E+00   8.80821E−02 −1.22090E−01 −2.03495E−03 A8   1.66898E+00−2.14319E+00 −9.10404E+00   5.71121E+00 −9.76525E−01   4.32119E−01  1.60177E−01   1.42962E−02 A10 −8.42648E+00   6.37998E+00   2.90907E+01−1.28499E+01   1.60948E−01 −5.85268E−01 −1.02654E−01 −8.55909E−03 A12  2.55814E+01 −1.26431E+01 −5.13915E+01   1.87544E+01 −6.70051E−01  2.00849E−01   3.61092E−02   2.27967E−03 A14 −4.56047E+01   1.25240E+01  4.32838E+01 −1.58331E+01   7.96067E−01   6.41102E−02 −5.79879E−03−2.69472E−04 A16   3.35356E+01 −4.95913E+00 −1.11707E+01   5.47973E+00−3.65905E−01 −3.73888E−02   1.92810E−04   9.06057E−06 A18 A20

An equation of the aspheric surfaces of the third embodiment is the sameas that of the first embodiment, and the definitions are the same aswell.

The exact parameters of the third embodiment (with main referencewavelength as 555 nm) based on Table 15 and Table 16 are listed in thefollowing table:

Eighth embodiment (main reference wavelength: 555 nm) InRS11 InRS12InRS21 InRS22 InRS31 InRS32 0.12642 −0.00468 −0.17792 −0.46224 −0.53216−0.42421 InRS41 InRS42 InRSO InRSI Σ|InRS| 0.08198 0.14557 0.918481.03670 1.95518 Σ|InRS|/InTL Σ|InRS|/HOS (|InRS22| + |InRS31|)/IN23(|InRS32| + |InRS41|)/IN34 0.70958 0.50332 5.4565 16.3449 (|InRS31| +|InRS32| + |InRS41| + |InRS42|)/InTL (|InRS31| + |InRS32| + |InRS41| +|InRS42|)/HOS 0.42967 0.30478 |f/f1| |f/f2| |f/f3| |f/f4| |f1/f2||f2/f3| 0.76013 0.82160 1.00143 0.61776 1.08087 1.21888 Σ PPR Σ NPR ΣPPR/| Σ NPR| ΣPP Σ NP f1/Σ PP 2.19949 1.00143 2.19635 0.82478 7.378654.15015 f4/Σ NP IN12/f |InRS41|/TP4 |InRS42|/TP4 |ODT| |TDT| 0.570810.14736 0.09356 0.16613 2.50131 0.25090 InTL HOS HOS/HOI InS/HOSInTL/HOS Σ TP/InTL 2.75540 3.88456 1.68894 0.96746 0.70932 0.78347 HVT31HVT32 HVT41 HVT42 HVT42/HOI HVT42/HOS 0 0 0.98319 1.41703 0.616100.36479

It must be pointed out that the embodiments described above are onlysome preferred embodiments of the present invention. All equivalentstructures which employ the concepts disclosed in this specification andthe appended claims should fall within the scope of the presentinvention.

What is claimed is:
 1. An optical image capturing system, in order alongan optical axis from an object side to an image side, comprising: afirst lens having positive refractive power; a second lens havingnegative refractive power; a third lens having refractive power; afourth lens having refractive power; and an image plane; wherein theoptical image capturing system consists of the four lenses withrefractive power; at least one of the lenses from the second lens to thefourth lens has positive refractive power; the fourth lens has anobject-side surface, which faces the object side, and an image-sidesurface, which faces the image side, and both the object-side surfaceand the image-side surface of the fourth lens are aspheric surfaces;wherein the optical image capturing system satisfies:1.2≦f/HEP≦3.5;0.5≦HOS/f≦3.0; and0<Σ|InRS|/InTL≦3; where f1, f2, f3, and f4 are focal lengths of thefirst lens to the fourth lens, respectively; f is a focal length of theoptical image capturing system; HEP is an entrance pupil diameter of theoptical image capturing system; HOS is a distance in parallel with theoptical axis from an object-side surface of the first lens to the imageplane; Σ|InRS| is a sum of InRSO and InRSI, where InRSO is a sum ofabsolute values of the displacements in parallel with the optical axisof each lens with refractive power from the central point on theobject-side surface to the point at the maximum effective semi diameterof the object-side surface, and InRSI is a sum of absolute values of thedisplacements in parallel with the optical axis of each lens withrefractive power from the central point on the image-side surface to thepoint at the maximum effective semi diameter of the image-side surface;and InTL is a distance in parallel with the optical axis between theobject-side surface of the first lens and the image-side surface of thefourth lens.
 2. The optical image capturing system of claim 1, whereinthe optical image capturing system further satisfies:|TDT|<60%; where TDT is a TV distortion.
 3. The optical image capturingsystem of claim 1, wherein t the optical image capturing system furthersatisfies:|ODT|<50%; where ODT is an optical distortion.
 4. The optical imagecapturing system of claim 1, wherein the optical image capturing systemfurther satisfies:0 mm<HOS≦7 mm.
 5. The optical image capturing system of claim 1, whereinthe optical image capturing system further satisfies:0 deg<HAF≦70 deg; where HAF is a half of a view angle of the opticalimage capturing system.
 6. The optical image capturing system of claim1, wherein the fourth lens has negative refractive power.
 7. The opticalimage capturing system of claim 1, wherein the optical image capturingsystem further satisfies:0.45≦InTL/HOS≦0.9.
 8. The optical image capturing system of claim 1,wherein the optical image capturing system further satisfies:0.45≦ΣTP/InTL≦0.95; where ΣTP is a sum of thicknesses of the lenseshaving refractive power.
 9. The optical image capturing system of claim5, further comprising an aperture and an image sensor on the imageplane, wherein the optical image capturing system further satisfies:0.5≦InS/HOS≦1.1; where InS is a distance in parallel with the opticalaxis between the aperture and the image plane.
 10. An optical imagecapturing system, in order along an optical axis from an object side toan image side, comprising: a first lens having positive refractivepower; a second lens having negative refractive power; a third lenshaving refractive power; a fourth lens having refractive power; and animage plane; wherein the optical image capturing system consists of thefour lenses with refractive power; at least two of the lenses from thefirst lens to the fourth lens each has at least an inflection point on asurface thereof; at least one of the lenses from the second lens to thefourth lens has positive refractive power; the fourth lens has anobject-side surface, which faces the object side, and an image-sidesurface, which faces the image side, and both the object-side surfaceand the image-side surface of the fourth lens are aspheric surfaces;wherein the optical image capturing system satisfies:1.2≦f/HEP≦3.5;0.5≦HOS/f≦3.0; and0<Σ|InRS|/InTL≦3; where f1, f2, f3, and f4 are focal lengths of thefirst lens to the fourth lens, respectively; f is a focal length of theoptical image capturing system; HEP is an entrance pupil diameter of theoptical image capturing system; HOS is a distance in parallel with theoptical axis between an object-side surface, which face the object side,of the first lens and the image plane; Σ|InRS| is a sum of InRSO andInRSI, where InRSO is a sum of absolute values of the displacements inparallel with the optical axis of each lens with refractive power fromthe central point on the object-side surface to the point at the maximumeffective semi diameter of the object-side surface, and InRSI is a sumof absolute values of the displacements in parallel with the opticalaxis of each lens with refractive power from the central point on theimage-side surface to the point at the maximum effective semi diameterof the image-side surface; and InTL is a distance in parallel with theoptical axis between the object-side surface of the first lens and theimage-side surface of the fourth lens.
 11. The optical image capturingsystem of claim 10, wherein the fourth lens has negative refractivepower, and has at least an inflection point on at least one of theobject-side surface and the image-side surface thereof.
 12. The opticalimage capturing system of claim 10, wherein the optical image capturingsystem further satisfies:0.5≦ΣPPR≦10; where PPR is a ratio of the focal length f of the opticalimage capturing system to a focal length fp of each of lenses withpositive refractive power.
 13. The optical image capturing system ofclaim 10, wherein the optical image capturing system further satisfies:|TDT|<60%; and|ODT|<50%; where TDT is a TV distortion and ODT is an opticaldistortion.
 14. The optical image capturing system of claim 10, whereinthe fourth lens has negative refractive power.
 15. The optical imagecapturing system of claim 10, wherein the optical image capturing systemfurther satisfies:0 mm<Σ|InRS|≦10 mm.
 16. The optical image capturing system of claim 10,wherein the optical image capturing system further satisfies:0 mm<|InRS31|+|InRS32|+|InRS41|+|InRS42|≦8 mm; where InRS31 is adisplacement in parallel with the optical axis from a point on theobject-side surface of the third lens, through which the optical axispasses, to a point at the maximum effective semi diameter of theobject-side surface of the third lens; InRS32 is a displacement inparallel with the optical axis from a point on the image-side surface ofthe third lens, through which the optical axis passes, to a point at themaximum effective semi diameter of the image-side surface of the thirdlens; InRS41 is a displacement in parallel with the optical axis from apoint on the object-side surface of the fourth lens, through which theoptical axis passes, to a point at the maximum effective semi diameterof the object-side surface of the fourth lens; InRS42 is a displacementin parallel with the optical axis from a point on the image-side surfaceof the fourth lens, through which the optical axis passes, to a point atthe maximum effective semi diameter of the image-side surface of thefourth lens.
 17. The optical image capturing system of claim 16, whereinthe optical image capturing system further satisfies:0<(|InRS31|+|InRS32|+|InRS41|+|InRS42|)/InTL≦2.
 18. The optical imagecapturing system of claim 16, wherein the optical image capturing systemfurther satisfies:0<(|InRS31|+|InRS32|+|InRS41|+|InRS42|)/HOS≦2.
 19. The optical imagecapturing system of claim 10, wherein the optical image capturing systemfurther satisfies:0<f1/ΣPP≦0.8; where ΣPP is a sum of focal lengths of all the lenseshaving positive refractive power.
 20. An optical image capturing system,in order along an optical axis from an object side to an image side,comprising: a first lens having positive refractive power; a second lenshaving negative refractive power; a third lens having refractive power;a fourth lens having refractive power, and having at least an inflectionpoint on at least one of an image-side surface, which faces the imageside, and an object-side surface, which faces the object side; and animage plane; wherein the optical image capturing system consists of thefour lenses having refractive power; at least two of the lenses from thefirst lens to the third lens each has at least one inflection point onat least a surface thereof; the first lens has an object-side surface,which faces the object side, and an image-side surface, which faces theimage side, and both the object-side surface and the image-side surfaceof the first lens are aspheric surfaces; the object-side surface and theimage-side surface of the fourth lens are aspheric surfaces; wherein theoptical image capturing system satisfies:1.2≦f/HEP≦3.5;0.4≦|tan(HAF)|≦1.5;0.5≦HOS/f≦2.5;|TDT|<1.5%;|ODT|≦2.5%; and0<Σ|InRS|/InTL≦3; where f1, f2, f3, and f4 are focal lengths of thefirst lens to the fourth lens, respectively; f is a focal length of theoptical image capturing system; HEP is an entrance pupil diameter of theoptical image capturing system; HAF is a half of a view angle of theoptical image capturing system; HOS is a distance in parallel with theoptical axis between an object-side surface, which face the object side,of the first lens and the image plane; TDT is a TV distortion; ODT is anoptical distortion; Σ|InRS| is a sum of InRSO and InRSI, where InRSO isa sum of absolute values of the displacements in parallel with theoptical axis of each lens with refractive power from the central pointon the object-side surface to the point at the maximum effective semidiameter of the object-side surface, and InRSI is a sum of absolutevalues of the displacements in parallel with the optical axis of eachlens with refractive power from the central point on the image-sidesurface to the point at the maximum effective semi diameter of theimage-side surface; and InTL is a distance in parallel with the opticalaxis between the object-side surface of the first lens and theimage-side surface of the fourth lens.
 21. The optical image capturingsystem of claim 20, wherein the optical image capturing system furthersatisfies:0<f1/ΣPP≦0.8; where f1 is a focal length of the first lens, and ΣPP is asum of focal lengths of all the lenses having positive refractive power.22. The optical image capturing system of claim 20, wherein the opticalimage capturing system further satisfies:0 mm<HOS≦7 mm.
 23. The optical image capturing system of claim 20,wherein the optical image capturing system further satisfies:0 mm<|InRS31|+|InRS32|+|InRS41|+|InRS42|≦8 mm; where InRS31 is adisplacement in parallel with the optical axis from a point on theobject-side surface of the third lens, through which the optical axispasses, to a point at the maximum effective semi diameter of theobject-side surface of the third lens; InRS32 is a displacement inparallel with the optical axis from a point on the image-side surface ofthe third lens, through which the optical axis passes, to a point at themaximum effective semi diameter of the image-side surface of the thirdlens; InRS41 is a displacement in parallel with the optical axis from apoint on the object-side surface of the fourth lens, through which theoptical axis passes, to a point at the maximum effective semi diameterof the object-side surface of the fourth lens; InRS42 is a displacementin parallel with the optical axis from a point on the image-side surfaceof the fourth lens, through which the optical axis passes, to a point atthe maximum effective semi diameter of the image-side surface of thefourth lens.
 24. The optical image capturing system of claim 23, whereinthe optical image capturing system further satisfies:0<(|InRS31|+|InRS32|+|InRS41|+|InRS42|)/InTL≦2.
 25. The optical imagecapturing system of claim 23, further comprising an aperture and animage sensor on the image plane, wherein the optical image capturingsystem further satisfies:0.5≦InS/HOS≦1.1; where InS is a distance in parallel with the opticalaxis between the aperture and the image plane.